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F. EXAMPLE PROJECTS WHICH BEST ILLUSTRATE PROPOSED TEAM’S<br />
QUALIFICATIONS FOR THIS CONTRACT<br />
(Present as many projects as requested by the agency, or 10 projects, if not specified.<br />
Complete one Section F for each project.)<br />
21. TITLE AND LOCATION (City and State)<br />
Non-Exclusive Professional Services Agreement<br />
(Contract No: 07CEP001) – Miami, FL<br />
PROFESSIONAL SERVICES<br />
Ongoing (2008 – 2013)<br />
Specific dates included with<br />
projects below.<br />
23. PROJECT OWNER’S INFORMATION<br />
22. YEAR COMPLETED<br />
20. EXAMPLE PROJECT KEY<br />
NUMBER<br />
3<br />
CONSTRUCTION (if Applicable)<br />
Indicated below, if applicable.<br />
a. PROJECT OWNER<br />
Miami-Dade Water and Sewer Dept., FL<br />
b. POINT OF CONTACT NAME<br />
Mr. Rafael Terrero, P.E., BCEE<br />
c. POINT OF CONTACT TELEPHONE NUMBER<br />
786-552-8112<br />
24. BRIEF DESCRIPTION OF PROJECT AND RELEVANCE TO THIS CONTRACT (Include scope, size, and cost)<br />
Carollo is providing continuing engineering services for Miami-Dade County. Projects under this contract include:<br />
Preston and Hialeah WTP Improvements. The Miami-Dade County Water and Sewer Department (WASD) 225-mgd<br />
Hialeah and Preston WTPs treat raw water from a combination of four groundwater wellfields, including the Northwest<br />
Wellfield (NWWF). Nearby mining activities may trigger reclassification of the NWWF from groundwater to groundwater<br />
under the direct influence of surface water (GWUDI). This potential reclassification has significant implications from<br />
requirements to meet more stringent water quality standards than originally designed.<br />
The design is currently underway. The 165-mgd WTP is to be implemented in two major phases of construction<br />
resulting in the largest nanofiltration WTP at 93% recovery. Phase I would support the production of 125-mgd, and<br />
Phase II would expand this to the ultimate 165-mgd capacity. Major elements of the project are: Raw water pump station<br />
(159-mgd Phase I, 207-mgd Phase II), Rapid mix (3 – in-line mechanical mixers), Media pre-filters (27 - 12’x40’ pressure<br />
vessels), Cartridge filters (24 – 54-inch horizontal housings), NF (20 – 9.2-mgd trains, recovery up to 93%), Clean-in-place<br />
(liquid storage and feed for automated CIP), UV (5 – 48” reactors), Degasification (25 – 13.5’ diameter towers), Low service<br />
pump station (125-mgd Phase I, 165-mgd Phase II), Deep well concentrate injection (~3,000’ below land surface), Chemical<br />
storage and feed, On-site high strength (12-15%) sodium hypochlorite generation (15,000 ppd installed capacity) and Standby<br />
power (natural gas turbine, 37.7-MW installed capacity). Completion Dates: 2008 (Preliminary Design).<br />
Cost: $13.2 million (Est.)<br />
Water Use Permit Revision to Avoid Blending. Carollo helped Miami-Dade get an unfavorable condition of their water<br />
use permit waived after it caused an upsurge in customer complaints. Under a new water use permit, Miami-Dade was<br />
required to blend brackish water from the Floridan aquifer with its regular source of fresh water. In 2006, Miami-Dade began<br />
blending brackish water with fresh water at the Alexander Orr WTP. The brackish water increased the salinity of the treated<br />
water. Within months, customer complaints doubled, because of reddish-brown water discoloration from iron pipes. The<br />
blending requirement could be waived, but only if Miami-Dade could demonstrate to the South Florida Water Management<br />
District (SFWMD) that the blended water had degraded the treated water quality. Miami Dade asked Carollo to investigate and<br />
prepare a case that would prevent required blending at the Preston Hialeah WTPs by showing the link between the permit’s<br />
blending requirements and the increase in customer complaints in Orr WTP’s service area.<br />
Carollo investigated customer complaint records, well operating data, and finished water quality. An analysis of corrosion<br />
indices and water quality parameters found that finished water chloride was the significant factor corresponding to customer<br />
complaints. Blending raised the chloride concentration, aggravating iron corrosion, and causing customer complaints. Carollo<br />
and Miami Dade met with the SFWMD to present the case against blending and discuss its adverse effects on water quality.<br />
Consequently, the blending requirement was waived from Miami-Dade’s water use permit. Completion Date: 2008.<br />
Cost: $20,011.<br />
25. FIRMS FROM SECTION C INVOLVED WITH THIS PROJECT<br />
a.<br />
b.<br />
c.<br />
d.<br />
e.<br />
(1) FIRM NAME<br />
Carollo Engineers, Inc.<br />
(1) FIRM NAME<br />
Carollo Engineers, Inc.<br />
(1) FIRM NAME<br />
Carollo Engineers, Inc.<br />
(1) FIRM NAME<br />
Carollo Engineers, Inc.<br />
(1) FIRM NAME<br />
Carollo Engineers, Inc.<br />
(2) FIRM LOCATION (City and State)<br />
Miami, FL<br />
(2) FIRM LOCATION (City and State)<br />
Sunrise, FL<br />
(2) FIRM LOCATION (City and State)<br />
Lake Worth, FL<br />
(2) FIRM LOCATION (City and State)<br />
Boise, ID<br />
(2) FIRM LOCATION (City and State)<br />
Denver, CO<br />
(3) ROLE<br />
Prime<br />
(3) ROLE<br />
Support<br />
(3) ROLE<br />
Support<br />
(3) ROLE<br />
Support<br />
(3) ROLE<br />
Support<br />
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