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67 January 28, 1997 Mr. Dan Pearson Executive Director CERTIFIED MAIL Texas Natural Resource Conservation Commission P 053146046 .- P.O. Box 13087 i Austin, Texas 78711-3087 I , : Dear Mr. Pearson: We are requesting, your approval, according to Chapter 310 of 30 Texas Administrative Code (T AC) pertaining to the use of reclaimed water, to use water treated in the San Marcos Wastewater Treatment Plant for use on both restricted and unrestricted landscape areas within the jurisdiction of the City of San Marcos. At the present time, the reclaimed water will be processed through a pilot process knoVvTI as the Photo * Peri Water Treatment System and disinfected prior to being used. Once the remodeling of the San Marcos Wastewater Treatment Plant is completed for the new wastewater permit issued (5-5-2-1), the effluent 'will be used as a source for the reclaimed water. . PROPOSAL Due to the current acute drought conditions being experienced in this area, the City of San Marcos is proposing to temporarily utilize reclaimed water for irrigation proposes. Currently, the water will be obtained from the final clarifier of the San Marcos Wastewater Treatment Plant and will be processed through the full scale Photo * Peri Water Treatment Pilot Plant and will under .~ go a disinfection process prior to being trucked to governmental landscape areas for irrigation ! purposes. This proposal will offset the need for using potable water for the purpose of irrigation I of restricted and unrestricted landscape areas. The reclaimed water will be used for irrigation of seedling and distressed trees on City-owned property throughout the city; turf areas on soccer, softball and little league fields; landscape areas at City Hall, the Activity Center, Parks and Recreational Offices, the Old Fish Hatchery, Public Works Offices, Wastewater and Water Treatment Offices, Municipal Building~, Police Stations, Fire Stations, Cock House, Library, and ail governmental buildings; City Park and all other city parks; golf courses and playing fields; and for flushing of wastewater collection systems. An estimated maximum quantity of 12.5 Mgals per week of reclaimed water meeting the criteria for unrestricted landscaped areas, including a 30-day average, shall have a quality not to exceed a BODS of 5 mg/l, turbidity of 3 NTU, and fecal coliform of 75CFU/1 OOml will be utilized. City Hall. 630 East Hopkins. San ~farcos, Texas 78666 . 512/353-4444 . FAX 512/396-4656