Short Term Rehabilitation of Johr Al Dik landfill in Gaza Bill ... - UNDP

ITB 2012-424 

UXOs and Solid Waste Management 

PAL 10-71646 

Short Term Rehabilitation of Johr Al Dik landfill in Gaza 

Bill of Quantity 

Rehabilitation and Expansion of Johr Al Dik dump site in Gaza 

PAL 10-71646 - UXOs and Solid Waste Management

ITB 2012-424: Rehabilitation and Expansion of Johr Al Dik dump site in Gaza 2 

A. Preamble 

1. The Bill of Quantities shall be read in conjunction with the Instructions to Bidders, 

General and Special Conditions of Contract, General and Technical Specifications, and 

Drawings. 

2. The quantities given in the Bill of Quantities are estimated and provisional, and are 

given to provide a common basis for bidding. The basis of payment will be the actual 

quantities of work ordered and carried out, as measured by the Contractor and verified by 

the Engineer and valued at the rates and prices bid in the priced Bill of Quantities, where 

applicable, and otherwise at such rates and prices as the Engineer may fix within the terms 

of the Contract. 

3. The rates and prices bid in the priced Bill of Quantities shall, except insofar as it is 

otherwise provided under the Contract, include all Constructional Plant, labor, supervision, 

materials, erection, maintenance, insurance, profit, taxes, and duties, together with all 

general risks, liabilities, and obligations set out or implied in the Contract. 

4. A rate or price shall be entered against each item in the priced Bill of Quantities, 

whether quantities are stated or not. The cost of Items against which the Contractor has 

failed to enter a rate or price shall be deemed to be covered by other rates and prices 

entered in the Bill of Quantities. 

5. The whole cost of complying with the provisions of the Contract shall be included in 

the Items provided in the priced Bill of Quantities, and where no Items are provided, the 

cost shall be deemed to be distributed among the rates and prices entered for the related 

Items of Work. 

6. General directions and descriptions of work and materials are not necessarily 

repeated nor summarized in the Bill of Quantities. References to the relevant sections of 

the Contract documentation shall be made before entering prices against each item in the 

priced Bill of Quantities. 

7. Provisional Sums included and so designated in the Bill of Quantities shall be 

expended in whole or in part at the direction and discretion of the Engineer. 

8. The method of measurement of completed work for payment shall be in accordance 

with Palestinian Standards 

9. Errors will be corrected by the Employer for any arithmetic errors in computation or 

summation as follows: 

(a) Where there is a discrepancy between amounts in figures and in words, the 

amount in words will govern; and


(b) where there is a discrepancy between the unit rate and the total amount derived 

from the multiplication of the unit price and the quantity, the unit rate as quoted 

will govern, unless in the opinion of the Employer, there is an obviously gross 

misplacement of the decimal point in the unit price, in which event the total 

amount as quoted will govern and the unit rate will be corrected. 

10. The Unit Prices given hereunder the BOQ shall also include erection, installation, fixing, 

and re-fixing of all elements. These prices shall also include taxes, visa for labor, gate passes, 

accommodations for the Contractor’s staff and labors, all required insurance and work 

permits, guarantees, bonds etc. and all requirements necessary to have the work maintained 

until its final handing over. 

11. The Unit Prices given hereunder in the Bill of Quantities for this work shall also include 

overheads, risks, profit etc. and all other financial matters to have all these civil works 

completed. 

12. The works, materials or activities listed in the following shall always be considered as 

supportive works to be included in the Unit Prices bid for any item in the Bill of Quantities: 

(a) Any measurement for execution and payment of the works, including the 

provision of measuring instruments, gauges, setting out marks, marking paint 

and relevant tools, labor, etc., the maintenance and preservation of gauges and 

setting-out marks during the execution of the works. 

(b) Provision of small tackle tools or any other equipment required for the 

execution of the works. 

(c) Supply of consumable materials for the Contractor’s equipment. 

(d) Removal of all contamination (refuse, debris, building rubbish and the like) 

arising from or in connection with the Contractor’s work. 

(e) Protection of the executed works and of the items made available for 

execution of the works from damage, fire, inclement weather, vandalism and 

theft etc., to the time of final acceptance. 

(f) Transportation of all materials and structural components from the storage 

places on site to the points of use and return transportation, if required. 

(g) Submitting and transporting any samples required. 

(h) Carrying out tests on materials and works, etc., that is required by the 

Engineer. 

(i) Fuel and lubricants for operation of Contractor’s equipment. 

(j) All safety precautions and measures for safeguarding labor as well as 

securing surrounding areas. 

(k) Lighting of the work site. 

13. RIGHTS OF EMPLOYER 

The following rights are reserved to the Employer:


(a) To omit individual items mentioned in the Schedule of Prices if not required in 

the opinion of the Employer and/or to replace them should it be more 

advantageous to execute them in another way. 

(b) To order execution of alternative or provisional items as if they were main items. 

(c) To order execution of additional works as well as alternatives of works, always in 

conformity with the conditions outlined in the Contract. 

Any order and/or delivery of material or equipment by the Contractor for performance of the 

works may only be based on instructions and/or approved execution drawings by the 

Employer/Engineer. 

All equipment and materials for installation and finishing works to be incorporated in this 

contract shall prior to ordering and/or delivery by the Contractor, be approved by the 

Employer/Engineer both in respect of quality and type as well as of quantity. 

14. SITE ACCESS AND STORAGE 

The Tenderer shall visit the site and ascertain the location of required access onto the site and 

the location of allowance for complying with the requirements and for the reinstatement to 

original condition of all roads and areas used or disturbed by the Contractor to the satisfaction 

of the Engineer. 

15. SITE INSTALLATION 

All costs of labor, works, provisions, materials and equipment for Site Installations required 

by the Contractor and stipulated in the Tender Documents shall be included in the various 

unit prices of the Bill of Quantities. No extra payment will be allowed by the Employer for 

any of these activities. 

16. DURATION 

The total duration of the contract is Nine (9) calendar months including weekends, holidays 

and official holidays. 

Special Note: 

All items included in Bill 1, Bill2, Bill3, and Bill 4, for which no rate or price is required 

to be entered by the Bidder, will not be paid for by UNDP when executed and shall be 

deemed covered by the other rates and prices in the Bill of Quantities.


B. Work Items 

1. General items, general services .............................................................................. 4 

2. Field Investigations ................................................................................................... 10 

3. Test Field ....................................................................................................................... 13 

4. Site Clearance ............................................................................................................. 17 

5. Excavations .................................................................................................................. 19 

6. Bentonite Mat ............................................................................................................. 28 

7. Geo-membrane .......................................................................................................... 30 

8. Geotextile ..................................................................................................................... 34 

9. Drainage Layer ............................................................................................................ 38 

10. PE-HD Works ................................................................................................................ 40 

11. Concrete Works .......................................................................................................... 53 

12. Leachate Recirculation ............................................................................................ 60 

13. Surface Water Collection ........................................................................................ 68 

14. Road Construction .................................................................................................... 72 

15. Gas Collection ............................................................................................................. 77 

16. Special Equipment .................................................................................................... 81 

Summary ....................................................................................................................... 85


Bill No. 1: General Items, general services 

Item no. Description Unit Quantity Rate Amount 

The Bidders have to consider the 

following notes when completing 

their proposal: 

Note 1: All prices have to be given in 

US$ (United States Dollars) 

Note 2: Explanation of punctuation: 

- Dot (".") means decimal point 

- Comma (",") means "thousands 

The contractor has to consider that 

the landfill is located in a region with 

special climatic and geological 

conditions. This concerns site design 

criteria as listed in the General and 

Technical Specification. 

Therefore the contractor should 

proof, that all material and facilities 

supplied and all works carried out by 

the contractor or his subcontractor 

will consider above mentioned 

conditions and comply with 

applicable Palestinian regulations and 

standards. If Palestinian regulations 

and standards are not applicable or 

available the Contractor should proof 

best available technology. 

The Contractor shall be obliged to 

fulfil all Palestinian Regulations 

including respective limiting values. 

He has to prove the fulfilment 

whenever required, latest during 

commissioning. All costs for the 

fulfilment of the Palestinian 

Regulations shall be included in the 

prices given in the bid. 

The above remark should be valid for 

all material and facilities supplied and 

all works carried out as listed in the 

BoQ even if not stated there 

specifically.



1.1 Allow for maintenance of works for 12 

months after completion 

1.2 The cost price shall include the 

following: 

- Worker's protection plan 

and emergency plan 

A worker's protection and emergency 

plan has to be drawn up in 

accordance with the explanations of 

the General and Technical 

Specifications for the whole 

construction time 

- Building site equipment for 

the Contractor 

Appliances, tools and other operating 

material, which is required to carry 

out the building works as 

contractually agreed, shall be placed 

on site, readily 

available and - except for the fact that 

the material's use is charged 

separately - be put into operating 

condition inclusive of all works 

involved herein. The required fix 

installations shall be provided. 

The costs arising to prepare, maintain 

and operate appliances, buildings 

(offices), storage and working areas, 

temporary roads for the building 

phase, tools and equipment including 

payments for rent, lease, fees and the 

like shall be included in the lump sum. 

Buildings (offices), storage and 

working areas, preparation and 

maintenance of accommodation 

and social rooms for the Contractor's 

personnel, erection and preparation 

of scaffoldings, platforms and the like 

as well as installation and preparation 

of an electronic data processing unit 

shall be carried out in accordance 

with the stipulations by Project 

Manager



- Buildings for the Project 

Manager 

Temporary buildings (offices) and 

workshops for the Project Manager 

shall be supplied and maintained 

for the length of the construction of 

the first section of the landfill. Details 

of requirements for the buildings are 

described in General Specifications. 

- Buildings for geotechnical 

institute 

Temporary buildings (offices) and 

workshops for the external supervisor 

(geotechnical institute), who carries 

out the field investigations, shall be 

supplied and maintained for the 

length of the construction of the first 

section of the landfill site. Details of 

requirements for the buildings are 

described in General Specifications. 

- Temporary supply and 

discharging facilities 

The construction site as well as the 

site offices of the Constructor and the 

Project Manager shall be supplied 

with: electricity, drinking water, 

service water, waste water disposal, 

telephone installation / transmitting 

and receiving set 

- Clearing of construction site 

Clearing of the entire construction 

site and all installations including the 

repair of damage as well as the 

reconditioning of all areas used.



1.8 - Surveying services 

All surveying works which are to be 

supplied by the Constructor shall be 

provided such as control of the 

existing survey, extension of the 

existing survey to 10 m at the outside 

of the landfill area and fabrication of a 

digital 3-dimensional model of the 

terrain. For a detailed list of all works 

which are to be carried out please 

refer to the General and Technical 

Specifications. 

All documents (as-built plan etc) shall 

be handed over to the Project 

Manager in 3-fold as copies (one copy 

as printable copy). Furthermore, all 

documents and drawings shall be 

supplied to the Project Manager on a 

data carrier in a format to be 

determined by the Project Manager. 

Remuneration of all resulting invoices 

in a lump sum.



Fixed points of altitude (for survey) 

The polygonal point of altitude shall 

be produced with the help of a bolt 

(round head) of at least 10 cm length, 

which has been put in a concrete 

foundation (minimum cross section 

0.07 m², concrete quality C 25/30 EN 

206-1). The position of the fixed 

points shall be determined together 

with the Project Manager. The 

polygonal points shall be measured 

prior to the first ground survey carries 

out by Constructor. During the entire 

time of construction the altitude of 

the fixed points shall be controlled at 

regular intervals. All required works 

shall be incorporated into the 

standard price. Depth of concrete 

foundation 100 cm, polygonal point 

of altitude shall be maintained 

Static calculation of PE-HD pipes 

Static calculation for all PE-HD pipes. 

The calculation for all pipes shall be 

accomplished separately. 


in a lump sum 

Proof of static calculation of pipes 

All static calculations of PE-HD pipes 

shall be checked by an independent 

expert who shall be determined by 

the Constructor. Remuneration of all 

resulting invoices in a lump sum. 

Execution design 

Execution design for all electrical 

works on and around the landfill 

(especially for leachate recirculation) 

Remuneration in a lump sum



Progress report, documentation 

All project progress reports, 

photographic documentation, etc. 

shall be prepared as explained in the 

General Specifications. The 

equipment which is necessary to carry 

out these jobs (such as hardware, 

software, copying and binding 

machines) shall be installed and 

operated at the construction site. 

Detail drawings, plans of execution 

All detail drawings and plans of 

execution which are to be supplied by 

the Constructor shall be handed over 

in 3-fold as copies (one copy as 

printable copy). All works which are to 

be carried out are listed in the 

Technical Specifications. 


in a lump sum. 

As-built plan 

Preparation of as-built plan for the 

entire project based on governmental 

ground maps and as-built plans 

(survey of land, etc) provided by the 

Constructor. The scope of supply 

includes: 

Recording in view of position and 

altitude of the pipeline and supply 

line network produced inclusive of 

inspection chambers, special 

chambers and all other buildings with 

relevant height indications, indication 

of cross-sections, longitudinal 

sections, descents, etc., Recording of 

the entire area of the landfill by 

means of an electronic tachymeter on 

basis of the local map grid, which is to 

be provided by the Constructor. 

Preparation of plans showing the 

prevailing conditions and 

longitudinal profiles.


Bill No. 2: Field Investigations 


The individual field investigations are 

described in more detail in the 

relevant chapters of the General and 

Technical Specifications. The external 

supervisor must be independent and 

shall be determined already on order 

presentation. The relevant institute 

shall be presented (institute, address, 

contact person, telephone) and 

approved in written from. 

Base of landfill (fills) and ring road 

Deformation module EV2 on base of 

landfill site and sub-base of ring road 

shall be executed according to the 

specifications made by the 

independent geotechnical institute in 

areas where material is filled. 

Base (planum) of landfill 

Compaction degree Dpr and 

deformation module EV2 on base 

grade of landfill site shall be executed 

according to the specifications made 

by the independent geotechnical 

institute. 

Grain size distribution support 

layer 

Examination of the particle size 

distribution and of the undersize 

particles (fractile of probability 

distribution 20%) at the support layer 

shall be executed according to the 


independent geotechnical institute 

and the Technical Specifications. 

Grain size distribution drainage 

layer 

Examination of the particle size distribution 

and of the undersize particles 

(fractile of probability distribution 

10%) at the filter gravel shall be executed 

according to the specifications 

made by the independent 

geotechnical institute and the 

Technical Specifications.



Calcium-Carbonate 

Examination of the Calcium- 

Carbonate content at the filter gravel 

(drainage layer) shall be executed 



institute and the description of 

construction. 

Compaction degree 

Examination of the compaction 

degree Dpr of the mineral base 

material of the leachate pond shall be 

executed according to the 


independent geotechnical institute. 

Field investigation of permeability 

Examination of the coefficient of 

permeability for the mineral base liner 


executed according to specifications 

made by the independent 

geotechnical institute 

Water content 

Examination of the water content for 

the mineral base liner material of the 

leachate pond shall be executed 




Grain size distribution 


distribution for the mineral base liner 




independent geotechnical institute.



Compaction degree 

Examination of the compaction 

degree Dpr of the mineral base 

material of the base sealing system 

(for each layer) shall be executed 




Field investigation of permeability 

Examination of the coefficient of 

permeability for the mineral base 



according to specifications made by 

the independent geotechnical 

institute 

Water content 

Examination of the water content for 

the mineral base material of the base 

sealing system (for each layer) shall be 



independent geotechnical institute. 

Grain size distribution 


distribution for the mineral base 





institute.


Bill No. 3: Test Field 


The test field shall be produced as 

explained in the Technical 

Specifications. The specifications 

stipulated by the independent 

geotechnical institute shall be 

followed most exactly. The standard 

prices mentioned below include the 

presentation of all investigations and 

all secondary work involved. Possible 

hindrances caused by the fact that the 

investigations had to be carried out at 

different points in time (interruptions 

etc.) shall be considered. 

Base of landfill site, plain base 

Base (planum) of landfill site shall be 

produced in the plain base range of 

the test field to support the base 

liners. Longitudinal gradient of the 

plain base is 1 %. 

Material for base: sandy, silty material 

(“support layer”, see Technical 

Specifications) Permitted deviation 

from specified height: +/- 3 cm. 

Base (planum) of landfill site, 

slopes 

Base (planum) of landfill site in the 

slope area of the test field shall be 

produced to support the mineral 

liners. Slope 1:2.5. 

Material for base: sandy, silty material 

(“support layer”, see Technical 

Specifications) Permitted deviation 

from specified height: +/- 3 cm. 

Compaction (planum), plain base 

Compaction of base of landfill site in 

the plain base area of the landfill. Soil 

conditions are explained in the 

subsoil test (please refer to the 

Technical Specifications).



Compaction (planum), slopes 

Compaction of base of landfill site in the 

slope area of the landfill. Soil conditions 

are explained in the subsoil test (please 

refer to the Technical Specifications). 

Slope: 1:2.5 

Mineral Sealing, plan base area 

Mineral base liner made from strongly 

binding clay material shall be 

incorporated in layers of 0.275 m 

according to the prevailing profile and 

shall be compacted layer by layer. 

Material requirements according to 


Incorporation into the plain base area of 

the test field 

The material to be compacted shall be 

supplied by a secondary storage site of 

the Contractor. 

Mineral Sealing, slope areas 

Incorporation of binding clay material 

into the slope areas of the test field, 

slope 1:2.5 - all other works as explained 

in item no. 3.5 

Geomembrane layer 

A flexible geo-membrane made from 

PEHD shall be supplied, laid and 

installed (welded) in accordance with 

manufacturer's guidelines on the 

bentonite mat in the plain base areas of 

the landfill site. 

The sheetings shall be laid out in full 

size and plain on the base of landfill site. 

No wrinkling is allowed. The overlaps in 

longitudinal and transverse direction 

shall be min. 15 cm. Only the ground 

covered by the geotextile shall be 

remunerated, the overlapping part shall 

be included in the standard price. 

The welding seams shall be executed as 

double seams with inspection channel. 

Each welding seam shall be tested for 

impermeability and cohesiveness 

according to the existing regulations.



A protocol for each seam test shall be 

given to the Project Manager. 

When the sheetings are welded 

attention has to be paid to restrictions 

due to unsuitable weather conditions. 

That the chemical resistance and 

physical properties shall be verified in 

accordance with the relevant 

regulations (such as ASTM D 1593, 

ASTM D 638, etc.). 

The MFI Index (MFI 190/5) of the 

flexible geo-membrane layers shall be 

more than 2. 

Thickness of geo-membrane layer 

shall be min. 1.5 mm, the width of a 

layer shall be 5 m. 

Area of incorporation: base and slope 

area 

Geo-textile 1200 g/m2 

Overlaps in longitudinal and 

transverse direction shall be min. 50 

cm. 

Only the ground covered by the geotextile 

shall be remunerated, the 

overlapping parts shall be included in 

the standard price. 

The geo-textile shall be made of 

mechanically bonded PEHD filaments. 

The chemical resistance and the 

physical properties in accordance 

with the relevant regulations (such as 

EN 10319, EN ISO 12236 etc.) shall be 

verified by both internal quality 

assurance and external quality control 

and assurance by an independent 

authorised laboratory. 

The specific weight of the geo-textile 

shall be min. 1,200 g/m2.



Filter gravel 16/32 mm, base area 

A surface filter made of filter gravel 

16/32 mm (CaCO3 content


Bill No. 4: Site Clearance 


Lifting up and storing of stone 

chips V



4.5 Clearing of paved areas 

Bituminous paved areas in the 

northern part of the existing landfill 

area shall be cut, loaded and removed 

from the landfill site. The material 

becomes property of the Contractor 

and shall be removed to a disposal 

site of the Contractor. 

Thickness of paved areas about 20 to 

30 cm. 

The unit price contains all costs for 

the disposal. 

Delivery and incorporate ≈ its 

means Supply and install 

Supply of materials has to be secured 

before submitting relevant activities. 

It is anticipated that all materials 

supply to be completed within three 

months from starting of the contract. 

The environment sensitive materials 

will not be laid if they are not 

protected by subsequent layer. 

Payment will not be authorized for 

materials without execution. 

It is understood that the existing level 

in the dump site is changing and the 

contractor will carry out the works as 

the sections leveling for 3 meters cut 

and fill indicated in the bill items.


Bill No. 5: Excavations 


In the event that the quantity 

/measurement indicated for some 

Item No.s should be reduced or 

entirely cancelled, the Contractor is 

not authorized to claim any loss in 

profit. 

The soil in place is explained in the 


The basis for the calculation of all 

positions shall be soil material 

characterized as mainly sandy (partly 

silty or gritty) materials, which allow 

excavation without blasting. 

5.1 Excavating of soil, Leachate pond 

area 

The soil of the leachate pond area 

shall be excavated from all cutting 

profiles in the plain ground area as 

well in the slope area according to the 

Project Manager's requirements and 

in correspondence with the prevailing 

profiles. The soil shall be loaded and 

transported and shall be incorporated 

and compacted as part of the support 

layer in all areas of the cell ST (subcells 

1 and 2). 



The quantity of cleared soil shall be 

determined by the measurement at 

the borrow area with the help of 

digital model of the terrain 

(tachymetric survey). 

m3 3,500



5.2 Excavating of soil, seepage reservoir 

The soil of the seepage reservoir area shall 

be excavated from all cutting profiles in 

the plain ground area as well in the slope 

area according to the Project Manager's 

requirements and in correspondence with 

the prevailing profiles. 

The excavated soil shall become the 

property of the Contractor and shall be 

removed from site and shall be disposed 

of at the expense of the Contractor. 

All other works as explained in item no. 

5.1. 

5.3 Excavating of soil, new hazardous 

waste area 

The soil of the new hazardous waste cell 

area shall be excavated in the plain 

ground area as well in the slope area 

according to the Project Manager's 

requirements. 

The soil shall be loaded, transported, 

incorporated and compacted as part of 

the support layer in all areas of the cell ST 

(sub-cells 1 and 2). 

Total area of new hazardous waste cell: 

2,500 m², depth: 2.0 m, slopes 1:2 


5.1 

5.4 Waste shifting on plateau area, sub-cell 

1 

Leveling of existing waste surface with 

suitable equipment on top of the total 

relatively flat plateau in the area of the 

(future base-sealed) sub-cell 1, including 

the transport of the disposed, mainly 

burned waste inside the plateau area. 

Thickness of fills and cuts: 0 to 3 m 

Waste profiling with an inclination of 

about 1 %; a waste volume of about 5,000 

m³ has to be shifted (waste is cut and 

filled),allowed tolerance + 20 cm, in max 

m3 2,000 

m3 5,000 

m2 

45,000



5.5 Waste shifting on plateau area, 

sub-cell 2 

Leveling of existing waste surface 

with suitable equipment on top of the 

total relatively flat plateau in the area 

of the (future base-sealed) sub-cell 2, 

including the transport of the 

disposed, mainly burned waste inside 

the plateau area. 

Thickness of cut: 0 to 3 m 

Thickness of fill: 0 to 3 m 

Waste profiling with an inclination of 

about 1.4 %; a waste volume of about 

12,000 m³ has to be shifted (waste is 

cut and filled), 

allowed tolerance + 20 cm, in max 

5.6 Waste shifting in sloped area 

Existing waste in northern sloped 

areas has to be profiled according to 

given plans and Project Managers 

requirements; 

Loading and transporting within the 

landfill area form sub-cell 1 to sub-cell 

2 and incorporation inside the area of 

sub-cell 2 according to Project 

Managers requirements 

Height of waste cut: up to about 8 m 

Profiling in sloped area with 

inclination from 1:1.5 to 1:2.0 

Material: mainly burned waste 

m2 

45,000 

m3 16,000



5.7 Soil incorporation, support layer 

Suitable soil (sandy-silty material) 

shall be supplied, incorporated and 

compacted in correspondence with 

the prevailing profiles or as required 

by the Project Manager as follow: 

- Filling material in the northern and 

southern sloped area (for slope 

reduction and creating a 

homogenous shape of Cell ST) 

- Filling material for raising the northwestern 

part of Cell ST 

- Support layer 

- Dike surrounding the disposal area 

The incorporation areas are sub-cell 1 

and sub-cell 2. 

The soil in place (excavation areas) 

respectively the soil necessary for the 

support layer is explained in the 


The incorporation shall be carried out 

layer by layer as described in the 


Total thickness of the support layer to 

be incorporated is at least 0.5 m, in 

slope areas up to 15 m. 

At the outside end of the support 

layer an end dike shall be profiled 

according to detail plan C-01. 

With each layer or at a minimum of 

3,000 m3 incorporated soil a test for 

the deformation module EV2 has to 

be carried out by the contractor (unit 

price given in item no. 2.1 and 2.2). 

Copies of the protocols shall be given 

to the Project Manager. 

The quantity of compacted soil shall 

be determined by the measurement 

at the incorporation area with the 

help of digital model of the terrain 

(tachymetry survey). 

m3 430,000



5.8 Soil incorporation, leachate pond 

area 


shall be supplied and incorporated 

Area of incorporation: leachate pond 

area with its access road, all other 

works as explained in item no. 5.7. m3 200 

5.9 Soil incorporation, support layer 

for temporary leachate pipes 


shall be supplied and incorporated 

Area of incorporation: base grade for 

temporary leachate pipes inside the 

southern sloped area of Cell ST, 

length about 120 m, horizontal width: 

1.0 m, 

all other works as explained in item 

no. 5.7. 

5.10 Extra Charge for Production of a 

Deepening 

Extra charge regarding earthworks for 

the production of a deepening 

(cavity) in the area of the leachate 

pipes on excavated/incorporated soil 

or made ground. 

Width of deepening in the centre 4 m, 

depth from 0.1 m up to 0.35 m. 

5.11 Compacting of the subsoil 

The subsoil shall be compacted in 

areas before incorporation of earth 

material starts. 



Specified compaction degree Dpr of 

min. 95% or 97 % (depending of the 

soil in place). 

Unit price for test is given in item 2.1 

and 2.2. 

Executing shall be carried out in 

sections of different sizes. 

m3 300 

m 1,700 

m2 15,000



5.12 Production of the base of the landfill 

site, plain base areas 

Base of the landfill site including the 

leachate pond shall be produced in the 

plain base areas to create a plane on top 

of the support layer in sub-cell 1 and 

sub-cell 2 and under the mineral sealing 

layer of the leachate pond. 

Longitudinal gradient of the plain base is 

about 1 %. Permitted deviation from 

specified height: +/- 3 cm. 

Verification is carried out via the digital 

model of the terrain (tachymeric survey). 

The resulting costs shall be included in 

the standard unit price. 

m2 90,000 

5.13 Production of the base of the landfill 

site, slope areas 

Base of the landfill site including the 

leachate pond shall be produced in the 

slope areas to create a plane on top of 

the support layer in sub-cell 1 and subcell 

2 and under the mineral sealing layer 

of the leachate pond. 

Slope gradient 1:2 to 1:2.5.; all other 

works as explained in item no. 5.12. 

m2 6,000 

5.14 Mineral sealing, base area of the 

leachate pond 

Mineral liner made from strongly 

cohesive clay material shall be supplied 

and incorporated in a layer of 0.44 m 

according to the prevailing profile and 

shall be compacted such that after 

compacting and under consideration of 

tolerances the min. required layer 

thickness of 40 cm shall be kept at all 

points. The material must have a 

coefficient of permeability equal or 

below 1 x 10-8 m/s. Incorporation into 

the plain base area of the leachate pond. 

Specified compaction degree Dpr >= 

95%. The material to be compacted shall 

be supplied by a secondary storage site 

of the Contractor. The required tests will 

be remunerated according to Section 2. m2 2,000


Item 

Description Unit Quantit 

no. 

y 

5.15 Mineral sealing, slope areas of the 

leachate pond 

Mineral liner shall be supplied and 

incorporated in a layer of 0.44 m according 

to the prevailing profile and shall be 

compacted. 

Total thickness of layer to be incorporated 

0.44 m, however min. 0.40 m. 

Incorporation in the slope area of the 

leachate pond, Slope gradient: 1:2 


5.14. 

m2 2,000 

5.16 Mineral sealing, base area of Cell ST 

Mineral sealing layer made from strongly 

binding clay material has to be delivered 

and incorporated in layers of 0.27 m (after 

compaction) according to the prevailing 

profile and has to be compacted layer by 

layer (2 layers) such that after compacting 

and under consideration of tolerances the 

minimal required layer thickness of 25 cm 

has to be kept at all points. 

The material must have a coefficient of 

permeability below 1 x 10-8 m/s. 

Total thickness of layers to be 

incorporated 0.55 m, however minimal 

0.50 m. 

Incorporation into the base (bottom) area 

of Cell ST 

Specified compaction degree Dpr >= 95% 

The material to be compacted has to be 

supplied by a temporary storage area of 

the Contractor. The Contractor must certify 

that the quality and quantity are sufficient. 

The material has to be continuously 

verified according to the specifications of 

an independent geotechnical institute. 

The required tests will be paid according 

to Section 2. 

m2 88,000 

Rate Amount



5.17 Mineral sealing, slope area Cell ST 

Mineral liner shall be supplied and 

incorporated in two layer of 0.27 m, 

each according to the prevailing 

profile and shall be compacted. 

Total thickness of layer to be 

incorporated 0.55 m, however min. 

0.50 m. 

Incorporation in the slope area of Cell 

ST, Slope gradient: 1:2.5 

All other works as explained in item 

no. 5.16. 

m2 4,000 

5.18 Sand 0/2 for leachate pipe support 

Sand 0/2 mm shall be supplied, 

incorporated and compacted for the 

bedding of leachate drain pipes and 

leachate main pipes, 

The material shall be incorporated 

between two geotextiles in the area 

of the deepening produced. 

Width of incorporation is approx. 5 m, 

thickness of incorporation 0 to 30 cm. m3 1,700 

5.19 Trench, leachate collection pipe 

Excavation of trenches including the 

production of a base grade for the 

main leachate pipe. 

The accounted depth of excavation 

shall be calculated by taking the 

measure of the surface of the trench 

section which is to be excavated 

down to the planned base of this 

section (lower edge of pipe support). 

The accounted width of trenches shall 

be calculated on basis of the external 

diameter of the pipe + 60 cm. 


Technical Specifications.



The soil shall be stored temporarily, if 

this is necessary, loaded, transported 

and incorporated as trench filling 

accordingly. Surplus soil or soil which 

is unsuitable for filling purposes shall 

become the property of the 

Contractor and shall be removed from 

site and shall be disposed of on 

expense of the Contractor. 

Excavation of trench for leachate 

main pipes with an internal diameter 

of 400 mm, total depth of the 

trenches varying from 0.5 m to about 

2.0 m. 

m3 50 

5.20 Sand 0/8 for Pipe Embedment of 

Leachate Collection Pipes 

Sand 0/8 mm shall be supplied, 

incorporated and compacted as pipe 

embedment of leachate main pipes 

outside the landfill. 

The material shall be incorporated 

under trench conditions and also 

under dam conditions. 

The accounted width of the pipe 

embedment shall be calculated 

according to the respective trench 

width (trench conditions). Under dam 

conditions the pipe must be covered 

30 cm on both sides with embedment 

material. 

The thickness of the pipe support 

shall be l5 cm. The depth of coverage 

above the pipe shall be 30 cm. 

m3 150 

Total for Bill No. 5 

(carried forward to Summary)


Bill No. 6: Bentonite Mat 


6.1 Geo-synthetic clay liner (GCL), plain 

base of new hazardous waste cell 

A geo-synthetic clay liner (GCL) shall 

be supplied and installed in 

accordance with manufacturer's 

guidelines on the plain base areas of 

the new hazardous waste cell. 

The GCL shall be a geo-synthetic clay 

liner in geocomposite sandwich 

format. 

The sealing efficiency shall ne based 

on a high-swell activated sodium 

bentonite layer. 

Both carrier- and cover geotextiles of 

the geocomposite shall be PP-woven 

materials with high friction surface 

coating, each approx. 450 g/m². 

Between the top and bottom 

geotextile shall be a 60 g/m² 

supporting polyester-aerofleece, into 

which 4,500 g/m² of dry high-swell 

sodium bentonite powder shall be 

placed. 

All layers shall be strongly bound 

together by sewing. 

Material properties: 

� carrier- and cover geotextile: 

PP-woven, with high friction 

surface coating 

� supporting layer: 

60 g “aero fleece 

� sealing layer: 

approx. 4.500 g/m² activated 

sodium bentonite 

� total weight per unit area (EN 

965): 

approx. 5.500 g/m² 

� Tensile strength (EN ISO 10 319): 

approx. 20/30 kN/m (long./trans.) 

� Strain at nominal strength: 

< 25/25 % (long./trans.)



� CBR puncture resistance (EN ISO 

12236): 

3,500 N 

� thickness (dry condition EN ISO 

9863-2): 

8.0 mm 

� internal shear resistance of 

hydrated GCL (direct shear test) 

� Angle of friction: 36 ° 

� Cohesion: 25 kN/m² 

� Permeability coefficient at 30 kPa 

load and 300 mm water head: 

5 x 10-11 m/s 

The mechanical properties of the GCL 

shall be verified by both internal 

quality assurance and external quality 

control and assurance by an 

independent authorised laboratory. 

The production of the supplier shall 

be EN ISO 9001:2000 certified. Each 

roll should have at least one 

identification label with roll number 

and product type in accordance to EN 

10320 

An adequate insurance covering the 

performance risks of the GCL related 

to product defaults shall be provided 

by the supplier. 

m2 1,700 

6.2 Geo-synthetic clay liner (GCL), 

slope area of new hazardous waste 

cell 

A geo-synthetic clay liner (GCL) shall 

be supplied and installed in 

accordance with manufacturer's 

guidelines on the slope areas of the 

new hazardous waste cell (slopes 

about 1:2.5, partly 1:2). 


no. 6.1. 

m2 800 




Bill No. 7: Geo-membrane 


7.1 Geo-membrane layer, plain base 

areas 





mineral sealing in the plain base areas 

of the landfill site. 

The sheetings shall be laid out in full 

size and plain on the base of landfill 

site. No wrinkling is allowed. The 

overlaps in longitudinal and 


cm. Only the ground covered by the 

geotextile shall be remunerated, the 

overlapping part shall be included in 


The welding seams shall be executed 

as double seams with inspection 

channel. Each welding seam shall be 

tested for impermeability and 

cohesiveness according to the 

existing regulations. A protocol for 

each seam test shall be given to the 

Project Manager. 

When the sheetings are welded 

attention has to be paid to restrictions 

due to unsuitable weather conditions. 

That the chemical resistance and 

physical properties shall be verified in 

accordance with the relevant 

regulations (such as ASTM D 1593, 

ASTM D 638, etc.). 

The MFI Index (MFI 190/5) of the 

flexible geo-membrane layers shall be 

more than 2. 

Thickness of geo-membrane layer 

shall min. 1.5 mm, the width of a layer 

shall be 5 m. 

m2 88,000



7.2 Geo-membrane layer, slope areas 





mineral sealing in the slope areas of 

the landfill site (slopes about 1:2.5). 


no. 7.1. 

7.3 Geo-membrane layer, leachate 

pond, plain base 





mineral sealing in the plain base area 



no. 7.1. 

7.4 Geo-membrane layer, leachate 

pond, slope areas 





mineral sealing in the plain slope 

areas of the leachate pond (slopes 

1:2). 


no. 7.1. 

7.5 Geo-membrane layer, new 

hazardous waste cell, plain base 





bentonite mat in the plain base area 

of the new hazardous waste cell. 


no. 7.1. 

m2 

4,000 

m2 2,000 

m2 

2,000 

m2 1,700


7.6 Geo-membrane layer, new 

hazardous waste cell, slope areas 





bentonite mat in the plain slope areas 

of the new hazardous waste cell 

(slopes 1:2). 


no. 7.1. 

7.7 Opening to lead through pipe 

d=315 mm / d = 250 mm 

The above mentioned geo-membrane 

shall be installed in a way that an 

opening can be produced which 

allows to lead through PE-HD pipes 

with an external diameter of 315 mm 

respectively internal diameter of 250 

mm (e. a. leachate drain pipe) in the 

area of the outside dams of the 

support layer as well as in the outlet 



impermeable according to the 

manufacturer's guidelines. 

7.8 Opening to lead through Pipe 

d=400 mm / d = 350 mm 

The above mentioned geo-membrane 

shall be installed in a way that an 

opening can be produced which 

allows a leading through PE-HD pipes 


respectively internal diameter of 350 

mm (f. e. leachate main pipe) in the 

area of the outside dams of the 

support layer as well as in the inlet of 

the leachate pond. 


impermeable according to the 


m2 800 

pieces 11 

pieces 7



7.9 Extra charge for embedding geomembrane 

Extra charge for embedding the 

above mentioned geo-membrane in 

the mineral sealing layer on the upper 

edge of the leachate pond according 

to the relevant detail drawing and to 

the Project Manager's requirements. 

The payment has to be calculated 

based on linear meters of embedding. 

All costs for the required works and 

services to be supplied for this 

process have to be included in the 

standard price. 

The embedding must be also done for 

the new hazardous waste cell 

m 440 




Bill No. 8: Geo-textiles 


8.1 Geo-textile 400 g/m2, sealing of 

sand bed 

A geo-textile shall be supplied and 

laid out as a cover layer for the sand 

bed in the area of the leachate pipes 

and leachate main pipes and as cover 

in the area of the end of the base 

sealing system. 



cm. 






mechanically bonded polypropylene 

filaments. 











The strip tensile strength according to 

EN ISO 10319 shall be min. 20 kN/m 

(machine direction/cross machine 

direction) 


shall be about 400 g/m2. 

m2 12,000


Item no. Description Unit Quantit 

y 

8.2 Opening to lead through pipes 

The above mentioned geo-textile 

with weight of 400 g/m2 shall be 

installed in a way that an opening can 

be produced which allows to lead 

through PE-HD pipes with an external 

diameter of 400 mm resp. internal 

diameter of 350 mm (leachate 

collection pipe) or 315 mm (leachate 

drain pipes) resp. internal diameter of 

250 mm to lead the pipe out of the 

landfill site. 


according to the manufacturer's 

guidelines. 

pieces 13 

8.3 Geo-textile 1,200 g/m2, plain base 

of landfill site 

A geo-textile shall be supplied and 

laid out as a protection layer above 

the geo-membrane in the plain base 

areas of the landfill site in accordance 

with the manufacturer’s guidelines. 



cm. 
















shall be min. 1,200 g/m2. 

m2 88,000 

Rate Amount


Item 

Description Unit Quanti 

no. 

ty 

8.4 Geo-textile 1,200 g/m2, plain base of 

leachate pond 

A geo-textile shall be supplied and laid out 

as a protection layer above the geomembrane 

in the plain base areas of the 

leachate pond. 

All other works as explained in item no. 8.3. m2 2,000 

8.5 Geo-textile 1,200 g/m2, plain base of 

new hazardous waste cell 



in the plain base areas of the 

new hazardous waste cell. 

All other works as explained in item no. 8.3. m2 1,700 

8.6 Geo-textile 1,200 g/m2, slope areas of 

landfill site and leachate pond 



in the slope areas of the landfill 

site and the leachate pond. 

All other works as explained in item no. 8.3. 

8.7 Geo-textile 1,200 g/m2, slope area of 

new hazardous waste cell 



in the slope areas of the new 

hazardous waste cell. 

All other works as explained in item no. 8.3. 

8.8 Opening to lead through pipe d=400 mm 

The above mentioned geo-textile with 

weight of 1,200 g/m2 shall be installed in a 

way that an opening can be produced 

which allows to lead through PE-HD pipes 


respectively with an internal diameter of 

350 mm in the area of the separating dams 

or the leachate pond. The incorporation 

shall be carried out according to the 


m2 

m2 

pieces 7 

12,000 

800 

Rate Amount


Item no. Description Unit Quanti 

ty 

Rate Amount 

8.9 Opening to lead through pipe d=315 

mm 

The above mentioned geo-textile with 

weight of 1,200 g/m2 shall be installed 

in a way that an opening can be 

produced which allows to lead through 

PE-HD pipes with an external diameter 

of 315 mm respectively with an internal 

diameter of 250 mm in the area of the 

separating dams and the leachate pond. 



guidelines. 

pieces 11 

8.10 Extra charge for embedding 

geotextile 

Extra charge for embedding the above 

mentioned geotextile with weight 

1,200 g/m2 in the mineral sealing layer 

on the upper edge of the leachate pond 

according to the relevant detail drawing 

and to the Project Manager's 

requirements. 

The end of the geo-membrane shall be 

covered with suitable soil. 

The payment has to be calculated based 

on linear meters of embedding. 

All costs for the required works and 

services to be supplied for this process 

have to be included in the standard 

price. 

The embedding must be also done for 

the new hazardous waste cell 

m 440 




Bill No. 9: Drainage layer 


9.1 Filter gravel 16/32 mm, plain base 

areas 


16/32 mm shall be supplied and 

incorporated on the geotextile in the 

plain base areas of the landfill site. 

Prior the incorporation, a qualification 

examination of the material used shall 

be supplied by the Contractor. 

The thickness of the layer applied 

shall be min. 30 cm. The CaCO3content 

of the material shall be 

smaller than 20%. 

Installation shall be carried out as 

described below: 

Application of gravel shall be started 

from the edge of the application area. 

The application device must always 

stand on the already applied filter 

gravel and it shall distribute the 

material to be applied from this 

position. 

The application device must never be 

positioned onto the geotextile. m2 88,000 

9.2 Filter gravel 16/32 mm, slope areas 


16/32 mm shall be supplied and 

incorporated on the geotextile on 

slope areas of the landfill site and on 

the separation dams, slope gradient 

1:2 to 1:2.5, all other works as 

explained in item 9.1. 

m2 4,000



9.3 Filter gravel 16/32 mm, protection 

dam above drain pipes 

Filter gravel 16/32 mm shall be 

supplied and incorporated as a 

protection dam above the leachate 

drain pipes and the leachate main 

pipe. 

The height of dam shall be from 

0.60m to 0.80m above the pipes, the 

slope gradient shall be 1:1.5, the 

width of berm crown shall be from 

0.60m to 0.80m. The CaCO3-content 

of the material shall be smaller than 

20%. 

m3 

1,700 




Bill No. 10: PE-HD Works 


For all pipelines and connecting 

elements (fittings etc) a pipe static 

calculation shall be provided by the 

Contractor. The remuneration shall be 

calculated according to a separate 

position in bill no. 1. 

The pipes must not be stored in areas 

where they are exposed to direct 

sunlight. If no place in the shadow is 

available they have to be covered 

according to the Project Manager's 

instructions. 

For every single welded joint (sockets 

for resistance welding and heated 

tool butt welding) a welding record 

shall be provided according to 

Technical Specification. This record is 

to be handed over to the Project 

Manager. 

After the welding process all internal 

burrs at the welding seams shall be 

completely removed. 

This work shall be included in the 

following standard prices. 

The standard prices also include all 

necessary cutting and welding of the 

pipes, when fitting lengths are 

required.



10.1 PE-HD leachate drain pipe 

315*28,6, SDR 11 

A leachate drain pipe made from 

extruded PE-HD shall be supplied and 

incorporated in the entire cell for the 

leachate collection according to the 

manufacturer's guidelines and/or the 

Project Manager's instructions. 

The pipes shall be installed in 

different inclinations. 

The leachate drain pipe shall be 2/3 

slotted, with 3 circumferential slots, 

gradient of the lower slots with 2% 

inclination with respect to the pipe 

invert. 

The slot length shall be 80 mm, the 

slot width shall be 10 mm. 

The individual pipes are connected by 

means of the heated tool butt 

welding process. All required works 

and services to be supplied for this 



The external pipe diameter shall be 

315 mm, the wall thickness shall be 

28.6 mm. The pipe shall be suitable 

for pressure class SDR 11. 

The following parameters have to be 

considered for the static calculation: 

- Weight of unit volume of waste 

approximately 10 kN/m³ 

- Waste covering of the pipe up to 30 

m 

- Laying conditions as for dam 

- Gravel layer up to approximately 

60 to 90 cm above pipe 

- Pipe support made from sand, 

support angle 120 degrees 

m 800



10.2 PE-HD leachate drain pipe di 250 

Leachate drain pipe made from 

extruded PE-HD material shall be 

supplied and incorporated in the 

entire 

cell for leachate collection according 

to the manufacturer's guidelines 

and/or the Project Manager's 



different 

inclinations. 

The leachate drain pipe shall be 2/3 

slotted, with 3 circumferential slots, 

gradient of the lower slots with 2% 

inclination with respect to the pipe 

invert. 

The slot length shall be 80 mm, the 

slot width shall be 10 mm. 


means of the heated tool butt 

welding process. All required works 

and services to be supplied for this 



The internal pipe diameter shall be 


according to the static requirements 

for covering from 30 to 55 m. 

The following parameters shall be 




- Waste covering up to 50 m 






m 280



10.3 PE-HD leachate main pipe 

400*36.3, SDR 11 

Leachate main pipe made from 


incorporated in the entire cell for the 

leachate collection according to the 




different inclinations. 






no. 10.1 

10.4 PE-HD leachate main pipe di 350 

Leachate main pipe made from 

extruded PE-HD material shall be 

supplied and incorporated in the 

entire 

cell for leachate collection according 


and/or the Project Manager's 



different 

inclinations. 



according to the static requirements 

for covering from 30 to 50 m. 


no. 10.2 

m 

m 

400 

200



10.5 PEHD monobloc pipe 315*28.6 mm 

A monobloc pipe made from 


incorporated as end pieces for the 

leachate drain pipes respectively 


guidelines and/or the instructions of 

the Project Manager. 

The individual pipes shall be 

connected by means of the heated 

tool butt welding process. All 

required works and services to be 

supplied for this process shall be 

included in the standard price. 





The following parameters have to be 





m 






m 20 


Monobloc pipes made from extruded 

PE-HD shall be supplied as end pieces 

for the leachate main pipes according 


and/or the instructions of the Project 

Manager. 






m 


no. 10.5. 

m 20


Item 

Description Unit Quantit 

no. 

y 

10.7 PEHD monobloc pipe di 250 mm 

Monobloc pipes made from extruded PE- 

HD shall be supplied as end pieces for 

the leachate pipes of item 10.2, 


guidelines and/or the instructions of the 



250 mm, the pipe shall be suitable for 

pressure class SDR 11. 

- Waste covering of the pipe up to 10 m 


10.5. 

m 200 

10.8 PEHD monobloc pipe di 350 mm 


HD shall be supplied as end pieces for 

the leachate pipes of item 10.4, 





350 mm, the pipe shall be suitable for 


- Waste covering of the pipe up to 10 m 


10.5. 

m 5 



HD shall be supplied as temporary 

leachate main pipes outside the landfill 

(connection from landfill to leachate 

pond) according to the manufacturer's 




400 mm, the wall thickness shall be 36.3 

mm. The pipe shall be suitable for 


- no waste coverage, pipes are laid in 

trenches (depth about 2 m) or on top of 

waste slopes 


10.5. 

m 140 

Rate Amount



10.10 T-Piece PE-HD, external diameter 

400/315, SDR 11 

A t-piece with a reduced end piece made 

from injection-moulded PE-HD shall be 

supplied and installed for the connections 

of the leachate drain pipes to the main 

leachate pipe according to the 




means of sockets for resistance welding. 

All required works have to be included in 



400 mm, the wall thickness in the main 

leachate pipe shall be 36.3 mm. 

The external pipe diameter of the end 

piece (for the leachate drain pipe) shall be 

315 mm, the wall thickness shall be 28.6 

mm. 

Waste coverage amounts to about 30 m 

(for static calculation) 

piece 4 

10.11 T-Piece PE-HD, internal diameter 

350/250 

A t-piece with a reduced end piece made 

from injection-moulded PE-HD shall be 

supplied and installed for the connections 

of the leachate drain pipes to the main 





means of sockets for resistance welding. 

All required works have to be included in 



350 mm, the wall thickness according to 

static requirements. 

The internal pipe diameter of the end 

piece shall be 250 mm, the wall thickness 

according to static requirements. 

Waste coverage amounts to about 50 m 

(for static calculation) 

piece 

4




400/400, SDR 11 

A t-piece made from injectionmoulded 

PE-HD shall be supplied and 

installed for the connections of the 

leachate main pipes to the temporary 






36.3 mm on all sides. 


no. 10.10 resp. 10.9 

10.13 PE-HD pipe bend, 400*36,3 SDR 11 

A pipe bend made from PE-HD shall 

be supplied and installed in the 

temporary leachate pipe according to 

the manufacturer's guidelines and/or 

the Project Manager's instructions. 

The individual pipe pieces shall be 

connected by means of heated tool 

butt welding. All required works have 

to be included in the standard price. 

The pipe bend shall be supplied in all 

necessary angles (15 and 90 degrees). 



36.3 mm. 

The fitting shall be suitable for 


piece 

piece 

2 

2



10.14 Welding neck 315*28.6 with 

movable flange 

A welding neck made from PE-HD 

with a movable flange shall be 

supplied and installed in the leachate 

pipe system according to the 



The connection to the pipe shall be 

done by means of sockets of 

resistance welding. All required works 

have to be included in the standard 

price. 

The movable flange shall be made of 

glass fiber reinforced PP with steel 

reinforcement. 

The fitting shall have an external pipe 

piece 4 

diameter of 315 mm 

10.15 Welding neck 400*36.3 with 

movable flange 








diameter of 400 mm. 


no. 10.14. 

10.16 Welding di 250 with movable 

flange 







The fitting shall have an internal pipe 

diameter of 250 mm (linked to pipes 

of item no. 10.2). 


no. 10.14. 

piece 

piece 

2 

4



10.17 Welding di 350 with movable 

flange 







The fitting shall have an internal pipe 

diameter of 350 mm (linked to pipes 

of item no. 10.4). 

All other works as explained in item piece 1 

no. 10.14. 

10.18 Blind Flange, Diameter 315 mm 

A blind flange shall be supplied and 

installed in the leachate pipe system. 

The flange shall have an external pipe 

diameter 315 mm. 

The fitting shall be made of glass fiber 

reinforced PP with steel 


All required works as well as supply 

and incorporation of required 

stainless connections and 

corresponding sealing materials shall 








no. 10.18 




The flange shall have an internal pipe 



no. 10.18 

piece 

piece 

piece 

4 

2 

4






The flange shall have an internal pipe 



no. 10.18 

piece 1 

10.22 PE-HD Inspection (revision) box 

with seal 

An inspection box with seal and with 

V2A quick release coupling, fabricated 

from PEHD pipes and sheets, shall be 


pipe system inside manhole 1 


guidelines and/or the Project 

Manager's instructions. 

The individual pipe pieces shall be 

connected by means of heated tool 

butt welding. All required works have 

to be included in the standard price. 



36.3 mm. 

10.23 Impermeability Test, PE-HD Pipes 

Impermeability test shall be executed 

in the main leachate pipe according 

to EN 1610 with air and including all 

required installations and seals. 

The process LD according to EN 1610 

shall be applied (pressuring with air 

and an overpressure of 0.2 bar) for PE- 

HD pipe with an internal pipe 

diameter of 250-400 mm 

Piece 

sum 

1 

1



10.24 PE-HD ventilation 

Ventilation pipes made of PE-HD shall 

be supllied and incorporated. 

The pipes shall be split in two parts. 

The standard price includes all fixing 

devices for wall and roof as well as all 

necessary sealings and pipe ducts 

(passing of the pipe through the 

concrete wall). The external pipe 

diameter shall be 200 mm, the wall 

thickness shall be 11.4 mm. 

The length of pipe shall be 

approximately 3.0 m. One air dome 

(cover of the pipes) shall be included. 

Installation according to drawing / 

plan. Constructional unit: 

inspection manhole for main leachate 

pipe and pump station 

10.25 PEHD lining 

A PEHD lining shall be supplied and 

installed as a surface cover on the 

base and the walls in the pump 

station and on the outlet structure at 

the leachate pond. 

The plates shall be made of PEHD 

with a thickness of 5 mm. They shall 

be applied to the inside of the 

boarding for the concrete. They must 

have naps on the inner side so they 

can bond well with the concrete. 

The standard price shall include all 

necessary equipment and works for 

adapting to the different slopes and 

structures in the area in incorporation. 

piece 

m2 

2 

50



10.26 Welding Neck 400*36.3 with 

Movable Flange 



supplied and installed in the gas 

collection pipe according to the 





Facilities for gas collection are 

described in Chapter 15 


no. 10.14. 

piece 






The fitting shall be made of glass fiber 

reinforced PP with steel 


All required works as well as supply 

and incorporation of required 

stainless connections and 

corresponding sealing materials shall 


Facilities for gas collection are 

described in Chapter 15 

piece 1 


(carried forward to Summary) 

1


Bill No. 11: Concrete Works 


Instructions For Execution: 

1) General 

For all structures the necessary 

structural analysis and detail drawings 

shall be supplied by the Contractor. 

The resulting costs shall be included 

in the standard prices. 

Checking of the compressive strength 

and bending tensile strength shall be 

done by an authorized material 

testing institute chosen by the 

Contractor. All required tests are to be 

executed according to applicable law. 

The resulting costs are to be part of 

the flat rate. 

2) Concrete Works 

The concrete shall be supplied and 

incorporated according to EN 206. 

The quality shall be min. C 30/37. 

The production of concrete shall take 

into account the exposure classes 

XF1, XA3 and XC1 according to EN 

206. 

Structurally connected parts shall be 

concreted in one stretch without 

payment of over-time or night work 

resulting from this. This is also true for 

building components between 

expansion and strain joints. For 

exceptions the Contractor shall 

consult with the stress analyst. 

The hight of the layers of concrete 

incorporation shall be max. 40 cm. 

Pouring pipes shall be used when the 

pouring height is bigger than 2.0 m



An even compaction by means of an 

internal vibrator is necessary 

The concrete shall be protected from 

exsiccation. The concrete must be kept 

wet for at least 7 days after pouring. 

Vibrations of the new concrete shall be 

avoided. 

All surfaces shall be made of fairfaced 

concrete except for those concrete 

surfaces touched by soil. 

Indicated boarding for a smooth 

surface shall be chosen by the 

Contractor (in consultation with the 

Project 

Manager!). 

All visible concrete edges shall be 

broken by means of a three square or 

trapeze ledge. This is also true for all 

seams. 

A sub-base made of non-reinforced site 

concrete (C 8/10 EN 206) shall be 

supplied and incorporated under all 

concrete structures. 

The thickness of the subbase shall be: 

10 cm. 

3) Reinforcement Steel 

The reinforcement steel shall be 

supplied according to relevant 

regulations have to be delivered and 

incorporated according to the 

structural requirements. 

The reinforcement steel shall have a 

tensile strength of at least 420 N/mm². 

It shall be formed with two rows of rips 

(strips), which are located diagonal and 

situated opposite each other. 

The supply and incorporation of all 

diameters and lengths as well as the 

incorporation in all constructional units 

shall be included in the standard prices 

of the structures.



4) Earthworks 

All necessary earthworks including 

excavations and fillings according to 

the relevant regulations and according 

to the requirements on site shall be 

included in the standard prices for the 

structures. The excavated soil shall 

become the property of the Contractor 

and shall be removed from site and 

shall be disposed of on expense of the 

Contractor. 

After completion of the buildings the 

building pits shall be filled with soil 

supplied by the Contractor. 

The filling material shall consist of 

friable soil, coarse-grained or mix 

grained. Is mix grained soil supplied, it 

shall contain material with a grain 

diameter smaller than 0.06 mm at a 

max. rate of 15 % (of the weight). 

The soil shall be incorporated and 

compacted layer by layer, each with a 

thickness of max. 30 cm. 

5) Pipe Connections / Pipe Wall Ducts 

All pipe connections and pipe wall 

ducts shall be impermeable. It is 

recommended to use special ring 

sealing systems to guarantee the 

impermeability. 

11.1 Manhole 1 

The complete structure of the 

manhole 1 shall be built according to 

the drawings and the above listed 

instructions by the Project Manager 

and according to the final drawings 

and the structural analysis supplied by 

the Contractor. 

All necessary supplies and works 

(including earthworks, concrete works 

with boarding and reinforcement 

steel, fabrication of the necessary 

recesses and pipe wall ducts) shall be 

included in the standard price.


Item no. Description 

The following item shall also be 

included in the standard price: 

Unit Quantity Rate Amount 

- Manhole cover, weatherproof, 

square in shape with dimensions 

of 1.0 / 1.0 m, completely made of 

stainless steel. The cover shall be 

supplied with a self-retracting 

lock, stainless steel gas assisted 

spring damper, self engaging door 

latch and robust, concealed 

hinges. In the centre of the cover 

shall be an integrated air vent 

made of stainless steel. The frame 

shall consist of a Z-section with a 

circumferential totally 

weatherproof rubber seal (frostproof 

and weather-resistant), 

designed for incorporating in 

concrete etc. The operating keys 

shall be included in the standard 

price. 

Earthing strip made from V2A 

stainless steel placed in concrete 

foundations, foundation slabs 

respectively in soil trenches to be dug 

out. 

The cross section shall be 

30 x 3.5 mm 

piece 1 

11.2 Leachate Pump Station 

The complete structure of the pump 

station at the leachate pond shall be 

built according to the drawings and 

the above listed instructions by the 

Project Manager and according to the 

final drawings and the structural 

analysis supplied by the Contractor. 






included in the standard price.



The following item shall also be 

included in the standard price: 


- Manhole cover, weatherproof, 

square in shape with dimensions 

of 1.0 / 1.0 m, completely made of 

stainless steel. The cover shall be 

supplied with a self-retracting 

lock, stainless steel gas assisted 

spring damper, self engaging door 

latch and robust, concealed 

hinges. In the centre of the cover 

shall be an integrated air vent 

made of stainless steel. The frame 

shall consist of a Z-section with a 

circumferential totally 

weatherproof rubber seal (frostproof 

and weather-resistant), 

designed for incorporating in 

concrete etc. The operating keys 


price. 

Earthing strip made from V2A 

stainless steel placed in concrete 

foundations, foundation slabs 

respectively in soil trenches to be dug 

out. The cross section shall be 30 x 3.5 

mm. 

piece 1 

11.3 Strip Foundations 

Reinforced concrete C 20/25 (EN 206) 

shall be supplied and incorporated as 

strip foundations for different 

constructional units. 

The upper concrete surface shall be 

horizontal and smoothed. 

Necessary boarding shall be included 

in the standard price. 



and reinforcement steel, fabrication of 

the necessary recesses and pipe wall 

ducts) is included in the standard 

price. 

m3 5



11.4 Culvert inlet structure (Manhole for 

surface water) 

The complete culvert inlet structure 

shall be built according to the 

drawings and the above listed 

instructions by the Project Manager 

and according to the final drawings 

and the structural analysis supplied 

by the Contractor. 

The manhole cover shall consist of a 

grating made of galvanized steel. 






piece 1 

included in the standard price. 

11.5 Slide valve with an internal 


Slide valve (gate valve) for example 

made of stainless steel (material 

1.4571) with an internal diameter of 

350 mm shall be supplied and 

installed for closing the main leachate 

pipe in the inspection manhole 1. 

All installation works including the 

necessary fixation inside the manhole, 

the incorporation into the PEHD pipe 


through flanged connections, all 

sealings and all necessary equipment 


price. 

The regulation of the slide valve shall 

be done manually from outside the 

manhole structure with a suitable 

stem extension and the applicable 

surface box. 

Construction depth from pipe base to 

top edge of manhole 1: 205 mm. 

piece 

1



11.6 Slide valve with an internal 


Slide valve (gate valve) for example 

made of stainless steel (material 

1.4571) with an internal diameter of 

250 mm shall be supplied and 

installed for closing the outlet pipe of 

the leachate pond in the pump 

station. 

All installation works including the 

necessary fixation inside the manhole 

and the incorporation into the PEHD 

pipe with an external diameter of 315 

mm through flanged connections, all 

sealings and all necessary equipment 


price. 

The regulation of the slide valve shall 

be done manually from outside the 

structure through the manhole cover 

with a suitable stem extension, which 

shall be fixated to the concrete wall. 

Construction depth from pipe base to 

the end point of the extension: 220- 

230 mm. 

piece 

1 




Bill No. 12: Leachate Recirculation 


Instructions For Execution: 

For the leachate recirculation a 

execution design has to be prepared 

by the Contractor (see item no. 1:18). 

This design has to be prepared with 

the real used facilities. 


12.1 Water pump 

Supply and Installation of water 

pumps in working conditions, 

including all necessary equipment and 

works for installation and operation. 

Two Submersible pumps have to be 

delivered and installed for the recirculation 

of leachate from the 

leachate pond to the landfill. One of 

the pumps is redundant in case of 

failure. 

The submersible pumps should have 

the following specifications: 

Type Submersible pumps (e.g. RITZ 

pumps, Schwäbisch Gmünd, Germany 

Type U8 100.Z/6+121/37,00/2) to fit in 

existing manhole (refer detailed 

drawing). The pumps should be 

equipped with an check valve. The 

supply side of the pump must be 

equipped with a stop valve. Both 

pumps must be fitted to be operated 

simultaneously for higher flow rates in 

case of heavy rainfalls. 

� Pressure High 70 m by flow rate 100 

m³/h 

� Electric power max. 50 kW 

The contractor has to specify the 

suitability of the pumps. 

The pumps should be delivered and 

installed including all fittings and 

pipes (internal diameter di 150) 

piece 2



12.2 High pressure pipe, diam. 150 mm 

Monobloc pipe made from extruded 

PE-HD has to be delivered and has to 

be laid out as a high pressure pipe for 

the above mentioned pumps. The 

individual pipes have to be connected 

by means of the heated tool butt 

welding process. 

All required works and services to be 

supplied for this process have to be 

included in the standard price. Length 

of pipe approximately 35 m, three 

pipe bends (90 °) have to be included 

in the standard price. 

External pipe diameter 180 mm, wall 

thickness 16.4 mm. Pipe is suitable for 


The unit price also includes all 

necessary earthworks (excavations 

and fillings of the necessary trenches 

including the pipe embedment) in the 

outside slope of the landfill. The pipe 

embedment shall consist of soil with a 

maximum grain size of 8 mm. The 

pipe shall be covered at least 20 cm 

with embedment material on all sides. 

Width of the excavation works as 

required for incorporating a proper 

pipe embedment as described above. 

Depth of the trench as necessary for a 

depth of coverage above the pipes of 

at least 

50 cm. 

The surplus of excavated soil or soil 

which is unsuitable for filling 

purposes shall become the property 

of the Contractor and shall be 

removed from site and shall be 

disposed of at the expense of the 

Contractor. 

All excavation works and all trench 

fillings including the pipe 

embedment have to be included in 

the unit price 

m 35



12.3 Concrete obstruction (base), distribution 

platform 

Deliver and incorporate a concrete 

obstruction (base) on a 30 cm gravel 

bearing course. Length / width = 1.5 x 

1.5 m, 25 cm high, 

The base must contain a hole to lead 

through the pipe made of PEHD with 

an external diameter of 180 mm with 

the necessary ring sealing system. 

12.4 Distribution joint PEHD 

Deliver and incorporate a distribution 

joint made of PEHD or stainless steel. 

This connections piece will be placed 

between the flexible pipes and the fix 

pipe DN 100 PEHD, Distribution joint 

with 1 entrance (pipe with external 

diameter of 180 mm) and 3 exits 

(internal diameter DN 100) with the 

necessary couplings for the below 

mentioned flexible pipes and slide 

valves to shut off the unused pipes. 

The standard price includes material 

costs, welding, connections etc. 

12.5 flexible pipes, length 50 m 

Deliver flexible pipes (hoses) with a 

complete length of appr. 50 m per 

unit, The hoses have to be delivered 

with a coupling to connect them with 

one another respectively with the 

below mentioned water distribution 

system (wide area sprinkler) and the 

distribution joint (item 12.4). The 

hoses have to be winded up on a tray 

(drum) for easy transport. Diameter of 

the pipes appr. 100 mm. All delivered 

pieces must be available on the spot, 

so replacement pieces can be bought 

easily 

piece 

piece 

piece 

1 

1 

3



12.6 Magnetic - inductive flow meter 

MID DN 150 

MID has to be delivered and incorporated 

in PE-HD pipes, flow meter 

regulated with microprocessor and 

supervised, compacted construction 

principal of measurement according to 

inductive low of Farrady construction: 

compact meter, registration of 

measurements together with adapted 

equipment for transformation of 

measurements, pipe diameter DN 100, 

length of construction: according to 

DVGW, supply for processor: flange 

according to DIN 2501, in steel ST 37.2, 

pressure class SDR 11, casing: 

aluminium die-casting metal, varnished 

surfacing with hard rubber electrodes 

made of stainless steel 1.4571 

Temperature of leachate: 0 to 50 °C, 

protection code: IP 65 range of 

measurement in m³/h, accuracy of 

measurement: +/- 0,5 %, dynamic of 

measurement: 1000:1 

exit: analogous: 0/4 ... 20 mA, bidirectional 

and impulse frequency: 

ipen collector, programmable 

energy supply: 85 260 V, 50/60 Hz piece 1 

12.7 OP-Panel 

Supply and installation in working 

conditions of a digital operation 

equipment (OP-panel) with liquid 

crystal (text) display, 4 lines and 20 

symbols per line have to be describeable. 

Foil keyboard with 22 system 

keys and 8 free function keys that can 

be parametered and signed, of it 4 

keys with LED-display 128 kB FEPROM 

user memory 

interface: pro data bus DP and RS232 

TTY and transmission rate: 1,5 

MBit/sec. in minimum 

protective system: IP 65, item includes 

all accessories 

piece 1



12.8 Central Processing Unit CPU 


conditions of a central processor unit 

(CPU) with a system (data) bus for 

several transfers at the same time and 

an additional PROFIBUS-DP-interface, 

able for configuration as master or 

slave. Working time: 300 ns for each 

binary instruction interface (MPI) for 4 

static and 8 dynamic links for network 

with 16 processor assemblies in 

maximum (rate of transition: 187,5 

kBit/sec); 

The de-central periphery (at the 

PROFIBUS) has to be handled like the 

central periphery, data storage free of 

maintenance without battery of all 

important data (NVRAM); 

LED display for showing mistakes in 

hardware, programs, time, periphery, 

battery or data bus and for state of 

operation for run, stop etc., the 

assembly has to be offered and 

delivered for the necessary operation 

system and all supplement systems, 

including all licences. 

12.9 Memory Card 


conditions of a memory card memory 

capacity: 256 kByte, FEPROM 

implementation card has to be in 

accordance to the total data storage 

of the bided CPU; 

12.10 Analogues Input Assembly 


conditions of an analogous input 

assembly; 8 analogous inputs (4 by 

resistance measuring) with potential 

division between the channels and 

an input/output system (data) bus; 

piece 

piece 

piece 

1 

1 

1



12.11 Analogues Output Assembly 


conditions of an analogous output 

assembly; 4 analogous outputs with 

potential division between the 

channels, a voltage supply and a 

input/output system (data) bus 

ranges of outputs have to be able for 

regulation for each channe 

12.12 Vibration Limit Circuit 


conditions of a vibration limit circuit 

for liquids, 

resistance against leachate of a 

landfill using as protection for 

running without liquid construction 

with lengthened pipe with pressured 

encased casing, item includes all 

necessary accessories 

12.13 Water Pilot 


conditions of a hydrostatic water 

pilot for permanent measuring of 

filling level inside a shaft 

for regulation of the limited filling 

levels and for integration to the 

different automatic systems, 

construction with lengthened pipe 

(up to 3 m) and thread or flange item 

includes all necessary accessories 

piece 

piece 

piece 

1 

1 

1


Item 

no. 

Description Unit Quantity Rate Amount 

12.14 Outside Switch Board 


conditions of a detached outside distributor 

for SPS-registration, including all 

safeties protection code: IP 65, casing 

made of strengthened fibreglass 

including lock, thermo-static airconditioned 

with sufficient air change, 

including lightning for switchboard, 

door switch, socket (system schuko) and 

bag for plans, including necessary base 

made of prefabricated concrete and 

insert of cables (from bottom), including 

installation of the described SPSassembly, 

safeties and all other 

equipment, including installation of a 

changing operation of the leachate 

pumps (each 50 kW) 

piece 1 

12.15 Pressure Gauge 


conditions of a pressure gauge (manometer) 

with spring (feather), bayonet 

socket made of stainless steel, 

connection with G ½´´, indication of 

measurement DN 100 mm, 

measurement range 0 - 16 bar and three 

step tap DN 25, on both sides female 

thread R ½´´ with control flanges 

piece 2 

12.16 Connection of all Equipment to 

Control and Monitoring Central 

All equipment (pumps, slide valves, MID, 

water pilot, vibration limit circuit, 

pressure gage etc.) have to be 

connected via cable to the control and 

monitoring central; in this item all 

connections of cables to the appropriate 

equipment have to be offered; therefore 

from each equipment an appropriate 

cable with a length of about 30 m has to 

be calculated, distribution switchboard 

will be located nearby the pump station; 

including laying of all requested cables 

piece 

1



12.17 Programing and Implementation of 

Control and Monitoring Central 

programming and implementation of 

total control and regulation central 

(for pumps, slide valves and all other 

necessary equipment) has to be done; 

definition of parameter, introduction 

of landfill staff and eventually 

necessary changes of parameters 

during a period of time of 6 month 

after starting up (testing phase) 

documentation includes all working 

drawings, construction plans, 

diagrams, operating instructions and 

all additional documents (on CD-Rom 

piece 1 

and hard copy, in triplicate) 

12.18 Test and Commissioning of total 

Recirculation System 

Leachate Recirculation System has to 

be cleaned after construction tested. 

The commissioning phase has to 

include all necessary tests to prove 

functionality of the system. 

piece 

1 




Bill No. 13: Surface Water Collection 


13.1 Drainage ditch, earthworks 

A drainage ditch or trench along the 

outer side of the landfill ring road has 

to be produced (north-western area 

of cell ST). The separated material has 

to be loaded, transported to a storage 

place of the Contractor. 

The width of the ditch is 

approximately 2.0 m, the bottom 

width is 1.0 m, the average depth is 

0.5 m. The producing has to be done 

in sections of different length. 

13.2 Excavation for trapezoidal ditch 

Excavation respectively earthworks 

for the trapezoidal ditch has to be 

done. 

The average depth of excavation is up 

to 0.6 m, the width is 1.2 to 1.5 m. 

All other works in 13.1., 

The payment has to be calculated 

according to the length of the chute, 

regardless of width. The length will be 

measured along the axis of the 

trapezoidal chute. 

13.3 Trapezoidal ditch, 30 cm high 

A trapezoidal ditch made of prefabricated 

concrete units has to be 

delivered and placed in the specified 

slope on a 20 cm gravel bearing 

course. In the area of the inclined side 

walls a gravel bearing course has to 

be done also. The joints have to be 

closed tight with cement mortar. The 

trapezoidal chute has to be 

constructed with clear dimensions of: 

- width on top: 1.00 m 

- width in bottom area: 0.40 m 

- tap (depth): 0.30 m 

The incorporation has to be done 

along the landfill ring road for surface 

water discharge 

m 

m 

m 

150 

650 

650



13.4 Natural stone paving around 

culverts etc. 

Natural stones (granite or lime quarry 

stone) have to be delivered and 

placed as paved area on slopes, in 

hollows and ditches, or as an 

enclosure of constructional units or 

culverts at erratically distances. The 

paving has to be done true to profile 

and level on thick bedding made of 

concrete, thickness 15 cm, and with 

joints with a width of 5 cm in 

maximum. Natural cleft quarry stones 

of largely cubical shape and with 

edge lengths between 10 cm and 30 

cm have to be used. 

Joints have to be filled with a mixture 

made of sand and cement. 

All works included 

13.5 Stones for hydraulic structures for 

erosion protection 

Granite stones with an edge length 

from 30 cm to 50 cm have to be 

delivered and incorporated as an 

erosion protection in the outlet area 

of culverts made of site concrete (as 

rubble layer). 

Joints have to be filled with binding 

soil taken from the job-site. 

Payment according to supply notes. 

m2 

tons 

25 

10



13.6 Reinforced concrete pipes with an 

internal diameter 800 mm 

Reinforced concrete pipes with a 

circular cross section, with a bell and 

spigot joint ("bell" sleeve) and an 

internal diameter of 800 mm have to 

be delivered and incorporated as a 

(drainage) culvert underneath along 

the landfill ring road. The concrete 

cover of reinforcement has to be 

minimum 30 mm on the inside and 

outside. The pipe connections have to 

be done with a sealing ring of 

elastomer plastic which is 

incorporated in the sleeve by the 

manufacturer. The pipe support shall 

be made of concrete C 12/15 EN 206- 

1 with a supporting angle of 120 

degrees, thickness of the pipe support 

minimum 15 cm. 

The pipes shall be laid in a trench. The 

pipe embedment shall consist of 

coarse-grained soil with a maximum 

grain size of 32 mm. The pipe shall be 

covered at least 20 cm with 

embedment material on all sides. 

The remaining trench filling shall 

consist of coarse-grained soil with a 

maximum grain size of 63 mm. 

Width and depth of the excavation 

works as required for incorporating 

the pipes under trench conditions. 







Contractor. 




the unit price. 

m 40



13.7 Reinforced concrete pipes with an 

internal diameter 300 mm 

A reinforced concrete pipe with a 

circular cross section and an internal 

diameter of 300 mm shall to be 

delivered and incorporated as an inlet 

system for the inlet structure of the 

culvert underneath the ring road 

according to the respective detail 

plan 

The concrete cover of reinforcement 

has to be minimum 30 mm on the 

inside and outside. 

The length of the pipe piece shall be 

about 2 meters. The pipe shall be 

without a joint. 

The pipe support shall be made of 

concrete C 12/15 EN 206-1, thickness 

of the pipe support minimum 15 cm. 

The price for the pipe support shall be 

included in the unit price. 

13.8 Quarry stones for protection of 

slope area leachate pond 

Quarry stones have to be delivered 

and incorporated as a protection in 

the slope area of the leachate pond. 

Slope 1:2 

Height of the stones 8 to 10 cm, edge 

length from 25 to 30 cm, square form. 

The stones have to be as uniform as 

possible. 

piece 

s 

m2 

2 

4,000 




Bill No. 14: Gas Collection 


14.1 Perforated PE-HD pipe (external 

pipe diameter: 180 mm), SDR 11 

Perforated PE-HD pipe has to be 

delivered and stored protected 

against weather conditions according 

to the Project Manager’s 

specifications. 

PE-HD pipe with an external pipe 

diameter of 180 mm, suitable for 


Pipe perforated across the whole 

circumference, slot width: 10 mm, 

pipe length: about 4.0 m. 

Each pipe has to be provided with an 

adequate cover (welded, of HDPE). 

Pipe will be used as filter pipe for gas 

piece 90 

collection. 

14.2 Steel pipe DN 800 

Pipe made of steel with an internal 

diameter of 800 mm and a wall 

thickness of 8 mm in minimum has to 

be delivered and stored protected 




Pipe has to be made of galvanized 

steel and including a gas-tight cover 

(with screwed connection and 

sealing, see detail plan gas collection). 

A connection piece for pipes with an 

internal diameter of 80 mm has to be 

provided at the steel pipe. 

Pipe overall length: 4.0 m. 

Lugs (eyelets according to detail plan) 

have to be welded at the top of the 

steel pipe for pulling. 

Pipe will be used as protection pipe 

for the gas filter pipe and as pull pipe 

for lengthening the gas filter pipe 

(according to the height of the waste). 

piece 

18



y 

14.3 PE-HD EL pipes with an external 


Monobloc (non perforated) pipes 

made of extruded PE-HD have to be 

delivered and stored protected 




The pipes have to be delivered in 

bundles. 

Pipe with an external pipe diameter of 

90 mm, wall thickness 5.1 mm, pipe 

suitable for pressure class SDR 17,6. 

The pipes have to be electrically 

conductive (EL). Surface resistivity



y 

14.6 Supporting cone of crushed stone 

(32/56 mm) 

A supporting cone (see detail plan gas 

collection) for a pull pipe made of 

steel has to be made for every gas 

vent. The material must be of limefree 

crushed stone of 32/56 mm grain 

size. 

The material has to be delivered, 

incorporated compacted according to 

the Project Manager’s specifications. 

Filling height approximately 1.0 m, 

floor space approximately 5.0 x 5.0 m, 

Inclination of slope 1:1.5. 

piece 18 

14.7 PEHD Monobloc Pipe 400*36.3 mm 

A monobloc pipe made from 


incorporated as a gas collection pipe 


guidelines and/or the instructions of 

the Project Manager. 


400 mm, the wall thickness 36.3 mm 

and suitable for pressure class SDR 11. 


no. 10.2. 

The unit price also includes all 

necessary earthworks (excavations 

and fillings of the necessary trenches 

including the pipe embedment) in the 

area between the ring road and the 

landfill. The pipe embedment shall 

consist of soil with a maximum grain 

size of 8 mm. The pipe shall be 

covered at least 20 cm with 

embedment material on all sides. 

Width of the excavation works as 

required for incorporating a proper 

pipe embedment as described above. 

Depth of the trench as necessary for a 

depth of coverage above the pipes of 

at least 50 cm. 

Rate Amount









Contractor. 


Unit Quantit 

y 

Rate Amount 



the unit price. 

m 150 


400/400, SDR 11 

A t-piece with made from injectionmoulded 

PE-HD shall be supplied and 

installed in the gas collection pipe 


guidelines and/or the Project 

Manager's instructions. 



36.3 mm on all sides. 


no. 10.4 resp. 10.1 

piece 1 




Bill No. 15: Special Equipment 


15.1 Truck weighbridge 

Maintenance-free flush-mounted electro 

mechanic truck weighbridge with deep 

foundation. Designed for mounting in a 

prefabricated foundation. 

Consisting of: 

foundation 

- 4 compressive load balance cells NL 

35t made of stainless steel, C4 quality 

- insulation panel for the foundation 

- 1 terminal box IP 54 

- 8 bumpers for limitation of vibrations 

- 4 gap transitions for shock free 

passing over the weigh bridge 

- 1 central traversable vestibule 

opening 

- 1 circumferential edge protection 

guard 60/60/8 mm 

precast concrete component bridge 

- bridge size 20 x 3 m 

- accessible from all directions 

- prefabricated concrete foundation 

approx. 20 x 3 m 

specifications: 

- maximum load: 60 tons 

- measuring range: 0,2 to 30 tons 

- scale interval: 0,01 tons 

- measuring range: 30 to 60 tons 

- scale interval: 0,02 tons 

- bridge size: 20 x 3 m 

The price includes all freight costs, all 


installation of the weigh bridge and the 

foundation. 

Also all wiring and concrete works are 

included as well as the acceptance test, 

statics and calibration. 

Foundation of weighbridge according to 

item no. 11.3 

such as Pfister (Augsburg) "Classic" 

model or similar 

piece 1



15.2 Control system for truck 

weighbridge 

Supply and installation of the technical 

equipment for the truck weighbridge. 


Digital weighing terminal 

Commercially verifiable to precision 

class III, CE-tested, PTB-approved, 

verifiable upgradeable MPP data 

memory, impact-resistant ABS plastic 

housing, CE-approval, EMC-tested to 

EN 45501, radiance-proof up to 10 

V/m, protection class IP 20, protection 

class front IP 65, analogue and digital 

load cells may be connected 

user languages: English, German, 

French, Italian, Spanish, Portuguese 

Weighing: Gross / Tare / Net 

4 possible operating modes: standard, 

sum, 

additive weighing, 

subtractive weighing 

Technical features 

- 6 operation-dependent soft 

keys 

(several menu levels) 

- background-illuminated LCD 

display, 135 x 32 mm 

- weight display 16 or 32 mm 

digit height selectable 

- mains connection 85 - 265 V 

AC, 50/60 Hz, 40 W, strain 

gauge load cell connection 

with 6-phase system, 12 load 

cells, 350 Ohms each 

- operating temperature: -10°C 

to + 40°C 

- storage temperature: - 

20°C to + 70 °C 

- relative humidity: max. 85%, 

non-condensing 

- date / time of day: integrated, 

battery-buffered clock chip



Data interfaces 

- 1 serial interface EIA RS 232 

- 1 serial interface configurable 

EIA RS 232/422/485 

- 1 analogue output 0-10V/ 4– 

20mA, alternatively 0–20mA 

- 2 inputs opto-decoupled; 24 V 

DC, low active 

- 2 outputs potential-free relais 

contact, max 110V AC DC, 200 

mA, e.g. configurable for traffic 

lights or barrier control 

such as Pfister (Augsburg) "DWT 400" 

Printer for digital weighing terminal 

According to the requirements of the 

customer and to be connected to the 

digital weighing terminal including all 

necessary cables. 

The price includes: 

- ready to use installation and 

calibration 

- initiation and briefing of the 

operating personal 

- production of an instruction 

manual including the 

construction, specifications, 

maintenance and possible 

technical failures. 

piece 

1



15.3 Wheel Cleaning Unit 

Supply and installation of all required 

equipment for the truck wheel 

cleaning unit. 

The wheel cleaning unit has to be 

installed as a drive through bath that 

requires no power. 


- 10 m long bath section 

- Width of bath section: 3.5 m 

- Height of bath section: about 52 

cm 

- Bath made as a steel construction 

- Bath section equipped with 

angled steel grids on internal 

sections 

- Removable internal grid sections 

for cleaning 

In addition: 

- Supply and installation of a 7,000 

litre header tank 

The price includes all freight costs, all 


installation of the wheel cleaning unit 

and its foundation. 

Principle foundation of unit according 

to item no. 14.6 

such as Wheel wash (Chesire UK) 

Drive Through Bath model or similar 

piece 1 




Bill No. 16: Electrical Works 


A)Main Distribution board (MDB): 

Supply, install and commission main 

and control panel board, the panel 

made of galvanized steel sheet 2mm 

thick, painted with anti-rust primer 

paint and 2 

coats of final polyester paint with 

colour RAL …. As required by the 

engineer. The panel should be factory 

assembled c/w pvc coated cu bus 

bars of adequate sizes and all other 

accessories that may needed to 

complete the job and hand over in 

operable conditions trenches, power 

and control wires, terminals bus bars 

neutral bus bar, earthing bus bar 

ducts, supports, labels and numbers 

and all necessary accessories to 

complete 

the work as per drawing and engineer 

Instruction. 

The panel sizes should be 210 cm 

height, 50 cm depth while the width 

to be determined after shop drawings 

and 

that all internal components were 

agreed upon. 

the panel shall include but not 

limited to the followings: 


16.1 Three phase main circuit breaker 

MCCB LTL 300A with 

over load protection and door handle 

No 1 

Moeller made or equivalent 

16.2 Over load current limiting switch with 

O.L and short 

circuit release, adjustable 4-6A 


No 4



y 

16.3 Signal indication lamp R S T with 

resistance 220V,Two LTL switch 2x32A 

Set 2 

16.4 Current Transformer 3(300/5A) Set 4 

16.5 Three phase Kwh and KVAR meters 5A Set 1 

16.6 Single phase Kwh meter 5A No 3 

16.7 Measuring devices ammeters 0-500A, 

voltmeter 0-500V indicating lamps, 

electrical siren, panel light selector 

switch, herz meter mcb or fuses 

protection. 

Set 1 

16.8 Three phase surge arrestor protection 

50KA at the incoming feeder to 

protect the system against lightning 

No 1 

strikes 

ground. 

including connection to 

16.9 Automatic Transfer Switch (ATS) 3 

phase, motorized type made of two 

identical switches 4 poles each, 

400v, 4000A rating c/w mechanical 

and electrically interlock and include 

also the ACU control unit 


Set 1 

16.10 Power factor correction unit 70KVAR 

c/w 6stages control unit, three phase 

Set 1 

contactors AC3 category with 

16.11 

auxiliary contacts, mcb or fuses of 

proper rating 

three poles static capacitors with 

resistances, toggle 

switches I-0-II and signal lamps and all 

necessary acc. for functioning 


Panel`s ventilation and anti-humidity 

units 

Set 1 

16.12 Front panel emergency Knock off stop 

button with fuses 

Set 1 

16.13 Three phases NZMB1 40A with o.l. No. 

protection for MDB.B 

1 

16.14 1-phase 40A NZMB1 for DBSOCIAL No. 

Moller made or equivalent. 

1 

Rate Amount



16.15 Three phase NZMN1 80A for No. 1 

16.16 

DBWORKSHOP Moller made 

or equivalent. 

Three phase NZMN4 200A for MDB 

Recirculation PUMP Moller made 

or equivalent. 

No. 1 

16.17 1phase MCCB 40A for DB control Moller 

made or equivalent. 

No. 1 

16.18 Three phase MCCB 3x40A with o.l 

protection for other load 

No. 1 

16.19 Three phase mcb 3x16/25A, Isc= 10KA @ 

400V 

No. 1 

16.20 Ditto, but( 1x16)and( 1x32A) No. 4 

16.21 Three phase MCB 3x20A for external 

lighting. 

No. 1 

16.22 Adjustable under volt relay. No. 1 

16.23 Manual change over switch 4x400A with 

external panel handle Type SOCOMEC or 

substantially equivalent. 

B) DB RECIRCULATION: 

No. 1 

16.24 Supply and install complete electrical 

control panel (3x150 Amp) suitable for 

operation one submersible pump rated 

power of 50KW for recirculation use. 

Other two DB(rated 5KW) one for 

leachate while the other 

for surface water pump. The panel 

should provide the required protection 

with all associated power and 

control circuits as per the following 

specification 

instructions: 

and the engineer 

Hot dip galvanized steel panel board 

enclosure with 

electrostatic paints thickness not less 

than 2mm and 

30% spare space including the following: 

One motor main breaker 3x125A type 

NZMN2-125A. 

Three phase solid state reduce voltage 

for motor control digital microprocessor 

with its control as per standard 

manufacturer recommendation. Soft 

starter No. 1


RVS-DN 105 Type Solcon or substantially 

equivalent 

with bypass contactors type DILMM125 

with auxiliary 

contacts 2N.C, 2N.O or substantially 

equivalent. 

Instrumentation and measuring devices 

,voltmeter with 7step switch, ampere 

meters, Hz meter, current meters, 

electrical siren, and panel lighting. 

Lightning protection circuit with lighting 

protection de- 

vice SPB-12/280/4 Moller type with 

protection fuse holder and fuses and 

wiring as per manufacture 

recommendation. 

Front panel emergency Knock off stop 

button with 

fuses. 

Control circuits with isolating 

transformer 380/220-24v 

1000VA and input output protections, 

adjustable under 

volt relays, timers relays, pumps control 

protection units (Mini Cas),high pressure 

control circuit, NVRs micro -switches 

control circuit, four position( 0-1-2-3) 

control switches,3phase H,O,A switches, 

pushbuttons, 

circuit breakers fuses with holders,(the 

red marked items are to be provided on 

shop drawing),cooling fans, and 

panel heater with its control circuits. 

signal indication lamp R.S.T with LTL and 

push button 

current transformers 3(150/5A). 

2(3X20A) MCCB for DB Leachate and DB 

surface water pump 

(1X16 FAZ-C16/1) as spare. 

The breaking capacity of the breakers 

shall be as minimum 50 KA @ 400 V. 

All necessary power and control wires. 

terminals, bus-bars, ducts, support labels 

and numbers ..etc as per engineer’ 

instruction 

power factor correction unit 40KVAR c/w 

6stages control unit, three phase


contactors AC3 category with auxiliary 

contacts, mcb or fuses of proper rating 

three poles static 

capacitors with resistances, toggle 

switches 1-0-11 and 

signal lamps and all necessary acc. For 

functioning Moeller made or equivalent. 

16.25 Supply and install electrical float switch 

inside the treated wastewater wet well, 

IP 68 with N.O and N.C 10A contacts, 

supply voltage 24 V mercury bulb switch 

type is FLYGT or substantially equivalent, 

the price includes pedestal mounted 

weather proof junction box outside the 

wet well, all float switches should be 

protected by 8 " UPVC pipe fixed to the 

wet pit wall with stainless steel 

connectors and supports, brackets and 

all required C.B, cables, conduits, ducts, 

cable glands, excavation and back filling 

to connect the float switch to the main 

control panel as per the engineer 


16.26 Supply and install micro-switches IP 65 

with N.O and N.C 10A contacts type is 

Moeller or substantially equivalent, 

connected to NRVs on the check valves 

the price includes all required C.B, cables, 

conduits, ducts, excavation and back 

filling to connect the micro-switch to 

the main control panel as per the 

engineer instructions. 

16.27 Supply and install pressure switch on the 

main header, the switch shall be 

adjustable (0-10 bars) danfoss type RT 

model or substantially equivalent , price 

includes all required C.B, cables, 

conduits, ducts, excavation and back 

filling to connect the switch to the main 



NO. 2 

NO. 1 

NO. 1



16.28 Supply and install power and data 

cables from the control panel to the 

flow meter and between the flow 

meter transmitter and transducer, size 

and specifications of the cables as per 

the flow meter manufacturer, the 

work includes 1*16A electronic 

protection socket from over voltage 

and Lightning with time delay and to 

complete the work as per the 

engineer instructions. 

NO. 1 

16.29 Supply and install and connect local 

disconnect switch 3*120A lockable 

type is Moeller sc rating 50KA to be 

installed close to the wet well inside 

water proof panel, including 

emergency stop with rotating release 

Moeller type, the price includes 

power (4*35mm2 CU/XLPE) and 

control cables (6*1,5mm2CU/XLPE), 

cable glands, cable terminals, conduit, 

ducts, concrete works to install and 

protect the disconnect switch panel, 

excavation and backfilling to connect 

the disconnect switch to the main 



NO. 1 

16.30 Supply and install earthling system Item 1 

includes, electrical manhole, 

electrodes, connectors, 50mm2 

copper wire from the electrodes to 

the control panel, testing resistant 

must be not more than 2 (ohm). 

C) CABLES required for MDB 

/LS 

16.31 XLPE cable 3x185+150mm2 . L.m 300 

16.32 Ditto, but 5x10 mm2 . L.m 70 

16.33 Ditto, but 5x6 mm2 . L.m 30 

16.34 Ditto, but 3x4 mm2 L.m 50 

16.35 Ditto. But cable 3x2.5mm2 

D) CABLES required for MDB 

L.m 30 

16.36 XLPE cable 5x95mm2 . L.m 350 

16.37 Ditto, but 5x6 mm2(For leachate and 

surface water) 

L.m 100 

16.38 Ditto. But cable 3x2.5mm2 (For L.m 200


control). 

E) Standby Diesel Generator: 

16.39 Supply, install and commission heavy 

duty industrial type diesel generator 

set 250KVA, three phase, 0.8PF, 

1500Rpm, 400Volts, 50Hz including 

electronic governor digital control 

panel, daily fuel tank for 8 hrs 

operation all necessary protection 

facilities with original made 

sound attenuator canopy of sound 

level


mounted on the ceiling, with all acc. 

Needed type is Gaash or equal 

approved. 

16.44 1x60W Circular Glop Water proof 

ceiling mounted with clear cover, and 

all accessories needed, type is Gaash, 

or equal approved. 

No. 1 

16.45 1x60W Wall mounted Glop,IP54,with 

polycarbonate cover Steel protection 

grill, and all accessories needed, type 

is 

No. 1 

Eleita Cat. No.20161 or equal 

approved. 

16.46 One gang-One way 220V-16A No. 1 

16.47 

ON/OFF.SP Switch, Type is Gewiss or 

equal approved. 

Two gangs, One way, sp switch, type 

is Gewiss or equal approved.(w.p) 

No. 1 

16.48 Ditto, but Water approved. No. 1 

16.49 Supply and install 4" dim. Wall No. 1 

mounted Etraction fan, With 

protection louver type is VENTA the 

work incl.0.75' conduit.3x1.5mm2 

16.50 

NYA wires and all accessories needed 

as per drawing and engr. Instruction. 

3-pin, 16A-220V socket outlet, type is 

Gewiss or equal approved. 

No. 3 

16.51 Ditto but Water proof. No. 2 

16.52 Telephone socket outlet incl. wires No. 

and all accessories pvc boxes….etc 

Type is Gewiss or equivalent. 

1 

16.53 sub distribution board for guard and 

control room 

Road lighting 

No. 1 

16.54 Galvanized steel pole with 

2arms,nob,basefixed to the ground 

with concrete basment,incl.3"flixeble 

conduits cables, Manholes, 

excavating and soft backfilling, 

wiring, MCB, Photocell kaja, CB and all 

accessories,12m height etc all work 

according engr. Instruction 

No. 3 

16.55 250W street light projector With No. 6


3x4mm2 xlpe cable,IP-65 junction 

boxes, clmn, CB, and all accessories& 

Connection needed. type is Gaash . 

lighting for container and concrete 

room. 

16.56 Supply and install fluorescent lighting 

fixture 2x36w with fine polyester 

diffuser for surface mounting, type is 

CA’ASH, SHATIEL or equivalent, the 

work includes all accessories needed . 

16.57 Supplying and installing round bulk 

head light, water proof (ceiling or wall 

mounted) with 18w PL lamps., type is 

CA’ASH, SHATIEL or equivalent, the 

work includes all accessories needed . 

No. 4 

No. 2 

16.58 "Supply and install one way switch No. 

including all accessories, cover with 

all requirements (bticino type ) with 

pipes ( over false ceiling fire resistance 

2 

pipes) ,cables NYY 3*1.5mm2 

16.59 

according engineering instruction if 

needed , boxes cover…….etc . The 

work shall include remove an old 

existing pipes and boxes……….etc 

and install new network + repair the 

damages. 

Ditto , but double pole switches . No. 2 

16.60 Supply ,install extract fan 6” with No. 2 

movable shutter with all accessories 

16.61 "Supply and install single socket 

outlet-16A including all accessories, 

cover with all requirements (bticino 

type) with pipes (over false ceiling fire 

resistance pipes), cables NYY 

3*2.5mm2 according engineering 

instruction if needed, boxes 

cover…….etc. The work shall include 

remove an old existing pipes and 

boxes……….etc and install new 

network + repair the damages. 

16.62 Supplying and installing electrical 

ceiling fan 220V\125W, with its wires, 

conduits, switch, connections…..etc. 

Type is CHMC or approved equivalent. 

No 4 

No. 4 

16.63 Grounding arrangements for MDB L.s 1


made of 70mm2 bare copper 

conductor buried directly to the soil 

at 80cm depth and connected to 

copper rods 19mm dia, 3m long 

driven 

into ground at convenient distances 

and connected to the E-bar in 

Distribution 

should not 

board, the resistance 

be more than 2 ohms, all exposed 

metallic parts to be 

bonded to the system with proper 

means. Type: Furse or equivalent 

Follow up all requirement and pay 

fees cost required by GEDCO to 

obtain permit of supplying 3x300 

L.s 1 

Amp. incl. theprice of shared 

transformer if necessary and all the 

work 

according GEDCO requirement.(The 

price relies on Gedco conditions) 




UXOs and Solid Waste Management 

PAL 10-71646 

Rehabilitation and Expansion of Johr Al Dik dump site in Gaza 

Summary: 

Item Description Total (US$) 

1. Total of Bill No. 1/ General items, general services Included in Unit Price 

2. Total of Bill No. 2/ Field Investigations Included in Unit Price 

3. Total of Bill No. 3 /Test Field Included in Unit Price 

4. Total of Bill No. 4 /Site Clearance Included in Unit Price 

5. Total of Bill No. 5 /Excavations 

6. Total of Bill No. 6 /Bentonite Mat 

7. Total of Bill No. 7 /Geo-membrane 

8. Total of Bill No. 8 /Geotextile 

9. Total of Bill No. 9 /Drainage Layer 

10. Total of Bill No. 10 /PE-HD Works 

11. Total of Bill No. 11/ Concrete Works 

12. Total of Bill No. 12/ Leachate Recirculation 

13. Total of Bill No. 13 /Surface Water Collection 

14. Total of Bill No. 14/ Gas Collection 

15. Total of Bill No. 15/ Special Equipment 

16. Total of Bill No. 16 /Electrical Works 

Grand Total (US$) – Not including Value Added Tax 

(VAT) 

Grand Total (in letters):------------------------------------------------------------- 

Contractor’s Name:------------------------------------------------------------------ 

Signature and Stamp:---------------------------------------------------------------- 

Date:-------------------------------------------------------------------------------------

Short Term Rehabilitation of Johr Al Dik landfill in Gaza Bill ... - UNDP

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