6.1.e. ERMUSR 06-16-2015 - Laserfiche WebLink

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MINNESOTA DEPARTMENT OF HEALTH cumuun Section of Drinking Water Protection MDH Sanitary Survey Report DEPARTMENT OF HEALTH ° og%ter Q,O System Name:Elk River Survey Date:05/21/2015 PWSID:1710004 Surveyor:Kim Anding Larsen, P.E. System Contact:Eric J.VoIk PWS Type:Community Requirements and Recommendations Water Source As a reminder, it is required that a well for a community public water supply be located according to distances specified in Minn.Rules 4725.4450, including not less than 50 feet from a source of contamination including buried sewers (except as specified in Minn. Rules 4725.5850). Pumps/Pump Facilities and Controls No deficiencies observed. Treatment Changes in treatment are required to be approved by the Minnesota Department of Health before they are implemented. [Minn. Rules 4720.0010] Water Storage It is required that the overflow for the water storage structure be screened with an appropriate mesh non-corrodible screen that prevents the entry of insects. [Recommended Standards for Water Works 7.0.7] It is recommended that all water storage structures be inspected externally on a seasonal basis to assess and repair environmental damage and verify integrity of vents and screens. A written maintenance program should include periodic internal inspection and cleaning. Operating procedures addressing minimum and maximum water levels and target turnover rates should be in place. [AWWA Standards Distribution Systems Operation and Management, Sec. 4.3] Distribution It is recommended that a valve exercising and replacement program be initiated to ensure valves are in working condition. This will minimize sanitary hazards and inconvenience to the customer when working on the distribution system. [AWWA Standards Distribution Systems Operation and Management, Section 4] It is recommended that the water system have a leak detection program to reduce water loss. Page 1 of 4 278