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<br /> <br /> <br />STATE OF COLORADO <br />DIVISION OF WATER RESOURCES <br />1313 Sherman St., Rm 818 <br />Denver, CO 80203 <br />(303) 866-3581 <br />INTEROFFICE MEMORANDUM <br />TO: UNWIN GRAVEL PII', FII-ENO. M-98-011 FII-E <br />FROM: KATHI-EEN L. SULLNAN, WATER RESOURCE INGINEER <br />SUBJECT: STORM WATER DETENTION IN GRAVEL PITS <br />DATE: 07/24/98 <br />CC: DICK WOLFE, P.E. <br />Per a 1:30 p.m. telephone conversation today with Phil H oeman, Permits Manager, at CDPHE- <br />Water Quality Control Division, the WQ®has no restrictions or regulations requiring that detained <br />storm water (such as runoff into a gravel pit) be released to the stream synem within a specific <br />amount of time after impoundment. However, if the water was not diverted or captured in priority, <br />Colorado Water Law requires it be released, or replacements for evaporation will be required of the <br />impounder/operator. <br />