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6.1.e. ERMUSR 06-16-2015 Elk River Municipal Utilities UTILITIES COMMISSION MEETING TO: FROM: Elk River Municipal Utilities Commission Eric Volk-Water Superintendent John Dietz—Chair Al Nadeau—Vice Chair Daryl Thompson—Trustee MEETING DATE: AGENDA ITEM NUMBER: June 16, 2015 6.1e SUBJECT: Staff Update DISCUSSION: • Delivered two new residential water meters. • Sealed the water meter and took curb stop ties from three water services. • Turned on six water services, and four electric services • Completed 25 BACTUTotal Chlorine Residual Samples; all confirmed negative for Coliform Bacteria. • Completed 20 routine fluoride samples. All samples met MDH standards. • Hydrant flushing was done the week of May 11-15. With the help of the metering department,the entire system was flushed in just one week lessening any inconvenience to our customers. • Well#8 was pulled for scheduled maintenance. After televising the well, we discovered there was roughly 75 feet of fill at the bottom of the well. We've reinstalled the well and will monitor whether or not we are pumping sand to help determine if we need to redevelop the well in the future. • After visiting with a couple of engineering firms, we've decided that Short Elliott Hendrickson(SHE)will be the one to assist us in optimizing our filtration process. The process will proceed over a couple of months this summer and will greatly increase our effectiveness during filtration. • The Minnesota Department of Health(MDH) completed their routine sanitary survey on May 21, 2015. There were a few recommendations for improvement noted by the MDH Engineer. The recommendations noted have already been rectified by the water operators and will not be an issue in the future. All of our wells were tested, and passed for coliform bacteria. Our wells have been tested in the past for radium-226,radium-228, and gross alpha in water and are under the maximum contaminant level of 5.4 pc/1 total for radium-226 and radium-228 and under 15 pc/1 for gross alpha. • We applied for a fluoride variance to Minnesota Rule 4720.0030 and it was approved. The variance allows us to feed fluoride at a lower rate. The variance was required because state law currently requires we feed 1.2 parts per million(ppm), and we were • P O W E R E D 8 1 Page 1 of 2 NATURE Reliable Public Power Provider P O W E R E D T o S E R V E 275 requesting to feed at a lower system target level of.7 ppm. The law is in the process of being changed to a target level of.7 ppm,which we would soon be required to follow. ATTACHMENTS: • May Pumping By Well • Minnesota Department of Health Sanitary Survey Report • Minnesota Department of Health Fluoride Variance Request • Minnesota Department of Health Fluoride Variance Approval 7 [ OWERED BI Page 2 of 2 NATURE Reliable Public Power Provider P O W E R E D T O S v E 276 ba C c Q Qt o E ri N a Q1 Q1 0 0 MI U r. ,M d N C1 a E e -c -u O— CV t O }' o • 0 4t M e-I To 0 c LA c o ftS c O Q T nl 2 M r-1 N p 0 N v ul 4* CA 73 M• , > e 9*▪ k w a 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 M I N N E S 0 T A MINNESOTA DEPARTMENT OF HEALTH MDH Section of Drinking Water Protection Sanitary Survey Report DEPARTMENT OF HEALTH Og water Pao System Name:Elk River Survey Date:05/21/2015 PWSID:1710004 Surveyor:Kim Anding Larsen, P.E. System Contact:Eric J.Volk PWS Type:Community Requirements and Recommendations Monitoring/Reportinq Data Verification The following applicable records are required to be maintained by the water supply system: a. Coliform bacteria results - 5 years b. Chlorine residual results - 5 years c. Chemical results - 10 years d. Sanitary survey reports - 10 years e. All lead and copper materials - 12 years f. Consumer confidence reports - 3 years g. Public Notices - 3 years h. Fluoride quarterly results and monthly reports - 1 year i. Turbidity results - 3 years [Minn. Rules 4720.0350] Water System Management/Operation As a reminder, engineering plans for new, modifications to, or additions to the water supply system, including watermains, are required to be properly submitted to the Minnesota Department of Health for review. All plans must be approved prior to the start of construction. [Minn. Rules 4720.0010] To ensure security, it is recommended that a daily check of critical system components be conducted, including confirmation that all doors and access hatches are locked. It is recommended that a comprehensive program of cross-connection surveillance be instituted to protect the water supply. This includes: a. The detection and correction of cross-connections to unsafe water supplies. b. The education of the public on the dangers of cross-connections. c. The installation of vacuum breakers on all threaded hose bibbs in new and old buildings. d. The replacement of defective plumbing in older buildings. e. Periodic cross-connection inspections of potentially hazardous industries and commercial establishments. f. The education of the employees on the dangers of cross-connections. Page 2 of 4 279 M I N N E S O T A MINNESOTA DEPARTMENT OF HEALTH MDHSection of Drinking Water Protection Sanitary Survey Report DEPARTMENT OF HEALTH water iAO\ System Name:Elk River Survey Date:05/21/2015 PWSID:1710004 Surveyor:Kim Anding Larsen, P.E. System Contact:Eric J.Volk PWS Type:Community Requirements and Recommendations Operator Compliance with State Requirements The certified operators are required to qualify themselves by attending waterworks operators training seminars offered throughout the state. Continuing education is valuable experience for anyone engaged in this field. The required contact hours in the previous 3 years for certification renewal are: Class A 32 contact hours Class B 24 contact hours Class C 16 contact hours Class D 8 contact hours Class E 4 contact hours [Minn. Rules 9400.1200] Page 3 of 4 280 MINNESOTA MINNESOTA DEPARTMENT OF HEALTH DElSection of Drinking Water Protection Sanitary Survey Report DEPARTMENT OF HEALTH ° 4)9 water Po� System Name:Elk River Survey Date:05/21/2015 PWSID:1710004 Surveyor:Kim Anding Larsen, P.E. System Contact:Eric J.Volk PWS Type:Community Bacteriological Results and Chlorine Residuals Chlorine Residual Coliform Date Sampling Location Free /Total (mg/L) Bacteria E.Coli 05/21/2015 Well #8 / Absent 05/21/2015 Well #7 / Absent 05/21/2015 Well #6 / Absent 05/21/2015 Well #5 / Absent 05/21/2015 Well #4 / Absent 05/21/2015 Well #3 / Absent 05/21/2015 Well #2 / Absent 05/21/2015 14181 Business Center Drive 0.49 / 0.62 Absent 05/21/2015 13445 Highway 10 0.65 / 0.74 Absent 05/21/2015 17079 - 171 Avenue NW 0.96 / 1.12 Absent 05/21/2015 11554 Highway 95 1.27 / 1.34 Absent 05/21/2015 Proctor Ave 1.23 / 1.36 Absent Page 4 of 4 281 Mrimmn T MINNESOTA DEPARTMENT OF HEALTH H SECTION OF DRINKING WATER PROTECTION DEPARTMENT OF HEALTH Public Water Supply Inventory Report watO,c.id` System Name: Elk River Survey Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.Volk PWS Type: Community Contact Information Name Address Phone/Email Contact Eric J.Volk Business Phone 1 763/635-1361 Cell Phone 612/802-4582 Email evolk @elkriverutilities.c om Mike Langer Cell Phone 612/231-0050 Owner/Responsible Party Elk River Municipal P.O. Box 430 Business Fax 763/441-2020 Utilities Elk River, MN 55330-5600 Business Phone 1 763/441-2270 Email tslominski @elkriverutilit ies.com Financial Elk River Municipal P.O. Box 430 Email tslominski @elkriverutilit Utilities Elk River, MN 55330-5600 ies.com Sample Bottles/General Correspondence Elk River Water 1705 Main Street Business Phone 1 763/635-1361 Superintendent Elk River, MN 55330 Email evolk @elkriverutilities.c om Emergency Workday Eric J. Volk Business Fax 763/441-2276 Business Phone 1 763/635-1361 Email evolk @elkriverutilities.c om Emergency After-Hours Eric J.Volk Business Phone 1 763/635-1361, Ext. 1361 Email evolk @elkriverutilities.c om Water Superintendent Eric J. Volk P.O. Box 430 Business Phone 1 763/441-2020 Elk River, MN 55330 Email evolk @elkriverutilities.c om Classification Information Owner Type: Municipal Population: 22974 System Class: B Service Connections: 4699 Service Area Characteristics: Municipal Class Points: 71 Certified Operators Name Class Expiration Date Name Class Expiration Date Volk, Eric J. A 05/31/2018 Hauge,Angela L. B 04/30/2016 5/26/2015 Page 1 of 9 282 �T T MINNESOTA DEPARTMENT OF HEALTH M DH SECTION OF DRINKING WATER PROTECTION DEPARTMENT OFHEALTH Public Water Supply Inventory Report a, Og k'ater prO�� YSurvey System Name: Elk River Surve Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.VoIk PWS Type: Community Certified Operators Name Class Expiration Date Name Class Expiration Date Langer, Mike D. B 04/30/2016 Ninow, David H. B 06/30/2016 Production Totals Design Capacity: Emergency Capacity: 3,000 Gallons per Minute Average Daily: 2,151,000 Gallons Storage Capacity: 4,000,000 Gallons Highest Daily: 4,800,000 Gallons Source Information Well#2 Unique Well No.: 00255153 Source Type: Groundwater Type: Well Pump Capacity(gpm): 650 Status: Active Pumping Rate(gpm): 650 Availability: Primary Emergency Capacity: Year Constructed: 1948 Static Depth (ft): -1 Well Depth (ft): 290 Drawdown (ft): 30 Casing Depth (ft): 136 Pump Type: Vertical Turbine VFD Casing Diameter(in): 16 Vulnerable: No Screen Length (ft): Aquifer: Mt. Simon Well#3 Unique Well No.: 00221176 Source Type: Groundwater Type: Well Pump Capacity(gpm): 850 Status: Active Pumping Rate (gpm): 850 Availability: Primary Emergency Capacity: Year Constructed: 1974 Static Depth (ft): 12 Well Depth (ft): 315 Drawdown (ft): 43 Casing Depth (ft): 201 Pump Type: Submersible VFD Casing Diameter(in): 16 Vulnerable: No Screen Length (ft): Aquifer: Mt. Simon 5/26/2015 Page 2 of 9 283 MINNESOTA DEPARTMENT OF HEALTH `iJDH SECTION OF DRINKING WATER PROTECTION DEPARTMENT DFHEALTH Public Water Supply Inventory Report -water p,O System Name: Elk River Survey Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.Volk PWS Type: Community Well#4 Unique Well No.: 00481794 Source Type: Groundwater Type: Well Pump Capacity(gpm): 1000 Status: Active Pumping Rate(gpm): 1000 Availability: Primary Emergency Capacity: Year Constructed: 1992 Static Depth (ft): -1 Well Depth (ft): 225 Drawdown (ft): 20 Casing Depth (ft): 197 Pump Type: Submersible VFD Casing Diameter(in): 18 Vulnerable: No Screen Length (ft): Aquifer: Mt. Simon Well#5 Unique Well No.: 00537682 Source Type: Groundwater Type: Well Pump Capacity(gpm): 1200 Status: Active Pumping Rate(gpm): 1000 Availability: Primary Emergency Capacity: 1000 Gallons per Minute Year Constructed: 1994 Static Depth (ft): 85 Well Depth (ft): 406 Drawdown (ft): 23 Casing Depth (ft): 316 Pump Type: Submersible VFD Casing Diameter(in): 18 Vulnerable: Yes Screen Length (ft): Aquifer: Mt. Simon Well#6 Unique Well No.: 00580320 Source Type: Groundwater Type: Well Pump Capacity(gpm): 1200 Status: Active Pumping Rate (gpm): 1000 Availability: Primary Emergency Capacity: 1000 Gallons per Minute Year Constructed: 1999 Static Depth (ft): 22 Well Depth (ft): 300 Drawdown (ft): 22 Casing Depth (ft): 212 Pump Type: Submersible VFD Casing Diameter(in): 18 Vulnerable: No Screen Length (ft): Aquifer: Mt. Simon 5/26/2015 Page 3 of 9 284 M I N N E S O T A MINNESOTA DEPARTMENT OF HEALTH MD SECTION OF DRINKING WATER PROTECTION DEPARTMENT OFHEALTH Public Water Supply Inventory Report Water P'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 Well#7 Unique Well No.: 00664852 Source Type: Groundwater Type: Well Pump Capacity(gpm): 1200 Status: Active Pumping Rate(gpm): 1000 Availability: Primary Emergency Capacity: 1000 Gallons per Minute Year Constructed: 2001 Static Depth (ft): 26 Well Depth (ft): 341 Drawdown (ft): 60 Casing Depth (ft): 240 Pump Type: Submersible VFD Casing Diameter(in): 18 Vulnerable: No Screen Length (ft): 100 Aquifer: Mt. Simon Well#8 Unique Well No.: 00694499 Source Type: Groundwater Type: Well Pump Capacity(gpm): 1500 Status: Active Pumping Rate (gpm): 1000 Availability: Primary Emergency Capacity: Year Constructed: 2004 Static Depth (ft): 11 Well Depth (ft): 390 Drawdown (ft): 25 Casing Depth (ft): 265 Pump Type: Submersible VFD Casing Diameter(in): 24 Vulnerable: No Screen Length (ft): Aquifer: Mt. Simon Well#9 Unique Well No.: 00757624 Source Type: Groundwater Type: Well Pump Capacity(gpm): 1000 Status: Active Pumping Rate(gpm): 1000 Availability: Primary Emergency Capacity: Year Constructed: 2008 Static Depth (ft): 15 Well Depth (ft): 454 Drawdown (ft): 35 Casing Depth (ft): 296 Pump Type: Submersible VFD Casing Diameter(in): 18 Vulnerable: No Screen Length (ft): Aquifer: Mt. Simon-Hinckley 5/26/2015 Page 4 of 9 285 MINNESOTA MINNESOTA DEPARTMENT OF HEALTH M DH SECTION OF DRINKING WATER PROTECTION DEPARTTHENTOFHEEALTTH Public Water Supply Inventory Report o� og Water . ...___._._........ 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 Treatment Information TREATMENT PLANT#2 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: Operating Rate: 650 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride (Z) Fluoridation/Hydrofluosilicic acid Iron removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Chlorine Manganese removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Sodium permanganate TREATMENT PLANT#3 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: Operating Rate: 850 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride (Z) Fluoridation/Hydrofluosilicic acid Iron removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Chlorine Manganese removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Sodium permanganate TREATMENT PLANT#4 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: Operating Rate: 1000 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride(Z) Fluoridation/Hydrofluosilicic acid Iron removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Chlorine Manganese removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Sodium permanganate 5/26/2015 Page 5 of 9 286 MINNESOTA MINNESOTA DEPARTMENT OF HEALTH \'l DH SECTION OF DRINKING WATER PROTECTION DEPARTMENT OFHEALTH Public Water Supply Inventory Report o� System Name: Elk River Survey Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.Volk PWS Type: Community Treatment Information TREATMENT PLANT#5 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: 1,000 Gallons per Minute Operating Rate: 1000 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride (Z) Fluoridation/Hydrofluosilicic acid Iron removal Filtration (Pressure)/Rapid sand Oxidation -chemical/Chlorine TREATMENT PLANT#6 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: 1,000 Gallons per Minute Operating Rate: 1000 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride (Z) Fluoridation/Hydrofluosilicic acid Iron removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Chlorine Manganese removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Sodium permanganate TREATMENT PLANT#7 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: 1,000 Gallons per Minute Operating Rate: 1000 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride (Z) Fluoridation/Hydrofluosilicic acid Iron removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Chlorine Oxidation -chemical/Potassium permanganate Manganese removal Filtration (Pressure)/Anthracite/Greensand Oxidation -chemical/Sodium permanganate Other Backwash recycle 5/26/2015 Page 6 of 9 287 1 i MINNESOTA DEPARTMENT OF HEALTH VI D H T SECTION OF DRINKING WATER PROTECTION DEPARTMENT OFHEALTH Public Water Supply Inventory Report a� og Water Q°tee System Name: Elk River Survey Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.Volk PWS Type: Community Treatment Information 1 TREATMENT PLANT#8 Type: Treatment Plant Source Water: Groundwater Status: Active Design Capacity: 1,000 Gallons per Minute Availability: Primary Emergency Capacity: Operating Rate: 1000 Gallons per Minute Treatment Objective Treatment Process Mechanism Disinfection Chlorine/Gas Fluoride (Z) Fluoridation/Hydrofluosilicic acid Storage Information Elevated 1,500,000 Type: Storage-Elevated Capacity: 1,500,000 Gallons Status: Active Availability: Primary Chlorination: r- Elevated 1000000 Type: Storage-Elevated Capacity: 1,000,000 Gallons Status: Active Availability: Primary Chlorination: C� Elevated 1000000 Type: Storage-Elevated Capacity: 1,000,000 Gallons Status: Active Availability: Primary Chlorination: Elevated 500000 Type: Storage-Elevated Capacity: 500,000 Gallons Status: Active Availability: Primary Chlorination: 5/26/2015 Page 7 of 9 288 M`I NN�N E S OO TTA MINNESOTA DEPARTMENT OF HEALTH VI D H SECTION OF DRINKING WATER PROTECTION DEPARTMENT OF HEALTH Public Water Supply Inventory Report ago Water ea°• System Name: Elk River Survey Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.Volk PWS Type: Community Bacteriological Sample Site Plan Distribution Sample Site ID Sample Location Status Notes Sportech Active Preferred Powder Coating Active Twin Lakes Church Active The Jungle- Highway 10 Active Panera Bread Active Elk Ridge Health Active Spire Bank Active Meadowvale School Active Dunn Bros. Active Elk River Tire and Auto Active Handke School Active Subway- Freeport Active Buffalo Wild Wings Active Subway Zane St Active The Shop-Zane St Active Precision Tune-dodge Active Sherwin Williams Active Ashley Furniture Active Northboud Liquor Active Caribou - Freeport Active Zylstra's Harley Active Holiday Store- Business Center Drive Active Central Lutheran Active Vison Bus Service Active W innlectric Active Cretex Plant Active Advanced Auto Parts Active ER City Hall Active Caribou - Carson Street Active Subway- Business Center Drive Active Wasterwater Plant Active ER DVS/DMV Active ERMU Power Plant Office Active ERMU Power Plant Active 5/26/2015 Page 8 of 9 289 unitarinT T MINNESOTA DEPARTMENT OF HEALTH \'lI�H SECTION OF DRINKING WATER PROTECTION DEPARTMENT OFHEALTH Public Water Supply Inventory Report oB K'atet V° System Name: Elk River Survey Date: 05/21/2015 PWSID: 1710004 Surveyor: Kim Anding Larsen, P.E. System Contact: Eric J.Volk PWS Type: Community Bacteriological Sample Site Plan Distribution Sample Site ID Sample Location Status Notes McCoys Pub Active Starbucks Active Flowers Plus Active ER Meats Active ER Public Works Active Deano's Auto Active 5/26/2015 Page 9 of 9 290 Minnesota Statute 14.055,which states that"a person or entity may petition an agency for a variance from a rule adopted by the agency, as it applies to the circumstances of the petitioner." It also states: Discretionary variances.An agency may grant a variance if the agency finds that: (1)application of the rule to the petitioner would result in hardship or injustice; (2)variance from the rule would be consistent with the public interest; and (3)variance from the rule would not prejudice the substantial legal or economic rights of any person or entity Municipal public water suppy(PWS)owners interested in maintaining a lower optimal fluoride concentration in drinking water, at an average of 0.7 mg/L within the range of 0.5 to 0.9 mg/L,can request a discretionary variance to Rule 4720.0030 by submitting the information below. Please contact 651-201-4700 or health.drinkingwateradvisory cr state.mn.us with any questions. Variance Request to Minnesota Rule 4720.0030 PWS Name Elk 4w( htititipoi atrhyes PWS ID Number i 7(00O'I I am requesting a variance to Minnesota Rule 4720.0030 on behalf of my PWS. This discretionary variance is in response to the recent guidance from the HHS and CDC for a single national fluoride level of 0.7 mg/L at community PWSs. We intend to maintain an average fluoride concentration of 0.7 mg/L, in the range between 0.5 and 0.9 mg/L. The requested variance is consistent with updated health risk information and public interest. In addition, the requested variance will not prejudice the substantial legal or economic rights of any person or entity. Request Date inn eV?WC If applying by email, I intend this email address to be my signature: ev01k.P Q.tmgervu k∎VtteS .t,ari■ If applying in writing, Signature of PWS Owner or Representative: Completed requests must be emailed to health.drinkingwateradvisory @state.mn.us or sent to Minnesota Department of Health,Drinking Water Protection Section,625 North Robert Street, St. Paul,MN 55164- 0975. SHARE 2 291 Volk, Eric From: *MDH_Drinkingwateradvisory <Health.drinkingwateradvisory@state.mn.us> Sent: Wednesday, May 27, 2015 1:33 PM To: Volk, Eric Subject: Fluoride Variance Approval To Whom it May Concern: "MDH has received and reviewed your request for a variance to Minnesota Rule 4720.0030. Your variance request is approved to provide fluoride in your public drinking water at an average concentration of 0.7 mg/L,within the range of 0.5 to 0.9 mg/L. This approval is effective immediately." David Rindal Minnesota Department of Health Community Public Water Supply Unit Phone 651/201-4660 1 292