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I :.;:__._ . __... _ <br />COLOP.ADO DEPARTMENT OF~ALTH ~j',i~ ___ , <br />. _ Water Quality Control Division ~'1~ JUL r _ - ' ~ <br />'4210 East 11th Avenue J 5~,',, ____ ___ - <br />Denver, Colorado 80220 ~ _ --~ <br />_ ~: <br />• SUHIIARY OF RATIONALE <br />ELAM CONSTRUCTION CO, <br />CHAMBERS PIT <br />PERMIT NUMBER: CO-0036579 <br />GARFIELD COUNTY <br />TYPE OF FACILITY: Minor Industrial <br />S.I.C. NO.: 1442 <br />LOCATION: In the Northeast 1/4 of Northwest of Section 14, <br />Township 6 South, Range 93 West, 6th Principal Meridian, <br />about 2 miles East of Rifie, CO, along U.S. Hwy. 6. <br />CONTACTS: Lloyd Peterson, President <br />1225 5. 7th St. <br />Grand Junction, CO 81501 <br />(303)+242-5370 <br />RECEIVING WATER: Colorado River <br />CLASS: BI <br />Effluent Limited Segment <br />• FACILITY DESCRIPTION: This facility deals strictly with gravel mining. There <br />is a dry crushing facility and dry screening; there <br />are no plans for a washing operation. Discharges shall <br />• be limited strictly to groundwater dewatering. Discharge <br />Point 001 shall be the outfall o:f the dewatering <br />line prior to entering the Colorado River as shown <br />in Figure 1, page 12. There are~to be no settling <br />ponds on the premises or off, and there will be no <br />runoff from the facility even in the event of extreme <br />precipitation events. Salinity will not be a problem, <br />but quarterly monitoring will be required. <br />PROPOSED LIMITATIONS: <br />Parameter Limitation Rationale <br />Flow N/A N/A <br />Total Suspended Solids 2$/4$ mg/1 8PT for Gravel Pits <br />Oil E Grease 10 mg/1 State Effluent Standards <br />pH 6.0 - 9.0 BPT for Gravel Pits <br />BP7 for Gravel Operations is referenced in the Federal Register, Vol. 42, No. 133. <br />Tuesday, July 12, 1977. <br />Gerry Bliss <br />6/19/79 <br />