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I <br />BOOK iiJ PAGE <br />DATE: MAY 1, 2000 <br />TO: JAMES E. CHANDLER <br />COUNTY ADMINISTRATOR <br />FROM: DONALD R. HUBBS, P.E. �� <br />DIRECTOR OF UTILI S <br />PREPARED GENE A. RAUTH <br />AND STAFFED OPERATIONS MANAGER FOR <br />BY WATER AND WASTEWATER FACILITIES <br />SUBJECT: NORTH COUNTY WATER TREATMENT PLANT <br />WORK AUTHORIZATION NO. 12 - PERMITTING SERVICES <br />BACKGROUND <br />The North County Water Treatment Plant was completed and started up in June <br />1998. Ground water is supplied by three wells constructed into the Floridan <br />Aquifer, and is pumped to the facility and treated by reverse osmosis <br />(nanofiltration) membranes. A byproduct of the membrane treatment process is <br />a concentrated solution high in chlorides (salts). The facility is currently <br />permitted to discharge up to 750,000 gallons of concentrate to the Indian River, <br />a water body of higher chloride concentration. Toxicity testing is required by the <br />existing permit. <br />The current facility industrial waste permit expires on February 9, 2001. The <br />permit and Florida Administrative Code (F.A.C.) 62-620 require that renewal <br />applications and supporting information be submitted to the Florida Department <br />of Environmental Protection (FDEP) at least 180 days prior to the expiration date. <br />MAY 0% 2000 <br />-54- <br />