Design Guide for Community Water Systems - The Water, Sanitation ...

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contact time must be provided to complete the chemical reactionsinvolved. Ozone is generally more desirable for treating water with highthreshold odors. Analyses for bromate should be done early in the designprocess. Biological mediation or other byproduct removal processes shallbe included as a part of the ozone facility design.4.10.10. Other methods.The decision to use any other methods of taste and odor control shall bemade only after careful laboratory and/or pilot plant tests and afterobtaining the approval of the department.4.11. Waste Handling and DisposalProvisions shall be made for proper disposal of water treatment plant sanitary andprocess wastes such as discharges from water closets, urinals and lavatories andlaboratory wastes, filter backwash water, brines and clarification, softening, ironand manganese residuals. All waste discharges are governed by regulatory agencyrequirements and shall be handled or treated to meet the applicable requirements.Additional permits and approvals other than those issued by the Missouri PublicDrinking Water Program may be required. It is the responsibility of the watersystem officials or their representatives to submit all required applications,submittals, and permit fees to the appropriate agencies and to obtain all necessarypermits.All wastewater discharges shall meet the general water quality criteria in 10 CSR20-7.031(3) and any additional criteria on the specific type of wastewaterdischarged. Treatment plant process residuals can be handled as a solid waste orthrough the wastewater permit process. If handled as a solid waste, residuals shallbe hauled to a permitted sanitary landfill for disposal. Permanent residual storagemakes the storage facilities a solid waste disposal site requiring the appropriatestudies and permits. If handled through the wastewater permit process, residualsare land applied for agronomic purposes.If the process residuals are to be land applied, those chemical characteristics thatwill affect its land application must be discussed as a part of the engineering reportsubmitted to the department. Estimates of the amount of land required for disposaland of the years that the land can be used must be included. Process wastehandling facilities shall be designed to be compatible with the drinking watertreatment facilities and not adversely affect drinking water treatment. The processwaste handling facilities must be designed to be compatible with the resources andcapabilities of the specific system and its operators. Methods and equipment forefficiently removing and disposing of process waste must be part of the handlingfacility design. If land application is to be done by a contractor information must besubmitted on the arrangements with a contractor to remove and land apply theresiduals. The method and information used in estimating the amount and type ofprocess waste produced must be part of the engineering report submitted to theAug. 29, 2003Page 86
department. In locating waste disposal facilities due consideration shall be given topreventing potential contamination of water sources, treatment facilities, and rawand finished water piping.4.11.1. Earthen Lagoons and Holding Basins.All earthen lagoons and holding basins shall be designed and constructed to meetthe requirements of 10 CSR 20-8.020(3) for design of small sewerage works forwaste stabilization ponds and shall be provided with the following:a. a location free from flooding or protected to a minimum one in ten year flood;b. a means of diverting surface water so that it does not flow into the lagoons;c. a minimum usable depth of five feet;d. a minimum freeboard of two feet;e. an adjustable decanting device;f. an effluent sampling point; andg. a method to prevent brush and weed growth on the interior slopes of thelagoon berms. If rip rap is used, it should have a minimum depth of 18-inchesand extend from the toe of each berm to the top of the slope. The rip rapshould be provided in at least two layers with the first 12-inches consisting ofmixed rock 2-inches and smaller in diameter.4.11.2. Sanitary waste.a. Shall be discharged directly to a permitted sanitary sewer system, whenfeasible, or to an adequate on-site treatment facility approved by thedepartment;b. Shall not be discharged to a process waste lagoon or backwash waterlagoon or to a residual holding basin or tank;c. May be discharged to sewage holding tanks when site restrictions,geology, or soil type prevents using a wastewater lagoon or septic tankand tile field. Sewerage holding tanks must be routinely pumped outand the waste hauled to a permitted wastewater treatment facility fordisposal. The name of the wastewater treatment facility where thewaste will be hauled for disposal must be part of the submittal to thedepartment. Holding tank location must provide for easy access byhauling equipment. Holding tanks must be equipped with the necessarydevices to effectively access and remove the waste from the holdingtank.d. Laboratory sample taps that run continuously while the plant is inoperation can be discharged to a backwash holding basin or residualslagoon by means of drainage that is separate from the laboratory sinkand plant sanitary sewerage piping system.4.11.3. Brine waste.Brine waste from ion exchange plants, demineralization plants, or otherplants that produce brine waste may be discharged to:Aug. 29, 2003Page 87
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Design GuideforCommunity Water Syst
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2.18. AUTOMATION. .................
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4.3.11. Waste Disposal. ...........
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CHAPTER 6 -- MINIMUM CONSTRUCTION R
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Maximum Hour Demand -- The amount o
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and deviations are subject to indiv
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(blank)Aug. 29, 2003Page viii
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a. A description of the nature and
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a. Hydrological data, stream flow,
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4. Be conducted under the same oper
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maintaining the new technology and
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1.2.1. Plans shall include:a. Suita
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name, number, effective date, publi
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e. The site will provide all-weathe
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chlorine residual by methods in "St
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etween them, a six-inch band of con
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a. Regulated recreational activitie
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e done to determine the degree and
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1. Pumping rate;2. Pumping water le
Page 55 and 56: sieve analyses of the water bearing
Page 57 and 58: e circulated in the annular space s
Page 59 and 60: emoved. Therefore, every well shoul
Page 61 and 62: 3.2.6.4. Pitless well units.a. The
Page 63 and 64: SIZE (inches)6 id.8101214 od.161820
Page 65 and 66: Chapter 4 -- Tre atment4.0. General
Page 67 and 68: settling basins shall be not less t
Page 69 and 70: 3. Shall have valves located outsid
Page 71: d. Be automatic. Timers on automati
Page 76 and 77: 2. Uniformity coefficient not great
Page 78 and 79: j. During air scour, the backwash w
Page 80 and 81: . An easily readable meter or flow
Page 82 and 83: 4.3.4. Design Pressure Drop or Tran
Page 84 and 85: 4.3.9. Flow Meters.Totaling rate of
Page 86 and 87: utilized, shall be 1.0 milligrams p
Page 88 and 89: . Removal of precursors prior to ch
Page 90 and 91: 5. Consideration shall be given to
Page 92 and 93: . Pre-treatment requirements. Iron,
Page 94 and 95: t. Housing. Bagged salt and dry bul
Page 96 and 97: 4.7. Iron and Manganese ControlIron
Page 98 and 99: Where phosphate treatment is used,
Page 100 and 101: 3. Series and parallel flow piping
Page 102 and 103: approval of the department before u
Page 106 and 107: a. Sanitary sewers with the approva
Page 108 and 109: 1. Obtain a letter of approval from
Page 110 and 111: 6. The provisions for the final dis
Page 112 and 113: a. Missouri River or Mississippi Ri
Page 114 and 115: 5.0.3. General equipment design.Gen
Page 116 and 117: minimize chemical dust created by t
Page 118 and 119: 1. At least 30 days of chemical sup
Page 120 and 121: e. Hand pumps shall be provided for
Page 122 and 123: 5.2. Chemicals.5.2.1 Shipping conta
Page 124 and 125: outside atmosphere, above grade and
Page 126 and 127: 5.4.2. Acids.a. Acids shall be kept
Page 128 and 129: 4. Anhydrous ammonia contact with c
Page 130 and 131: combustible material.2. Powdered ac
Page 132 and 133: fluoride feed line when a metering
Page 134 and 135: possibility for overfeed.h. Protect
Page 136 and 137: caution.d. Where taste and odor con
Page 138 and 139: e installed to monitor the flow of
Page 140 and 141: the generator dielectrics. Sufficie
Page 142 and 143: published by the National Fire Prot
Page 144 and 145: g. Water from pump gland drainage s
Page 146 and 147: 6.3. Pumps.6.3.1.Pumps shall be siz
Page 148 and 149: 6.4.2.2. Suction lines.Suction line
Page 150 and 151: cessation of minimum essential serv
Page 152 and 153: parameters: average winter (Decembe
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a. Overflows shall be sized to perm
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additional shielding to prevent the
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largest pump out of service shall b
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7.1.4. CostsAs part of the final en
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7.4. Hydropneumatic Storage7.4.1. H
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provided on larger tanks as needed
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7.5.2. Fire Suppression Rating Sche
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in areas served by rural water dist
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connected directly to any sewer. Su
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8.6.5. Force mains.There shall be a
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8.11.2. Filling device.A filling de
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