1 / 26

Polson Water Supply Presentation to Polson City Council

Polson Water Supply Presentation to Polson City Council. September 9, 2009. PRESENTERS. Roger Noble, Sr. Hydrogeologist Applied Water Consulting, LLC Tony Porrazzo, Superintendent Polson Water and Sewer Department. WATER SUPPLY SOURCES. Surface Water – Hell Roaring Creek

asher-maynard
Download Presentation

Polson Water Supply Presentation to Polson City Council

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Polson Water Supply Presentation toPolson City Council September 9, 2009

  2. PRESENTERS • Roger Noble, Sr. Hydrogeologist • Applied Water Consulting, LLC • Tony Porrazzo, Superintendent • Polson Water and Sewer Department

  3. WATER SUPPLY SOURCES • Surface Water – Hell Roaring Creek Alluvial Aquifer • Groundwater Deltaic Aquifer Bedrock Aquifer

  4. HISTORY OF VIOLATIONSHELL ROARING CREEK • May 16, 1995 • June 16, 1995 • June 20, 1995 • July 28, 1996 • July 31, 1997 • October 22, 1997

  5. Violation of TCR and/or Fecal Coliform • EPA Surface Water Treatment Rule • HKM Feasibility Study • Whitefish uses Haskill Creeks Upgrade costs ~ $7,000,000

  6. HELL ROARING WATER RIGHTS Flow RateVolumePriority Date 900 gpm 1,460 ac-ft January 3, 1922 1,125 gpm 1,825 ac-ft September 4, 1947 (225 gpm) (365 ac-ft)

  7. Depth Production Date Well No.(feet) Zone (feet)Constructed 1 525 251-292 1969 2 166 150-160 1960 3 177 152-174 1976 4 150 128-140 2000 5 135 113-125 2000 6 385 258-385 1999 7 350 239-350 2001 8* 428 398-418 1970 9* 530 512-524 1966 *Northwest Holdings

  8. Well Permitted Current Volume No.CapacityPumping Rate(ac-ft) 1 450 0 77 2 450 400 726 3 650 500 246 4 500 200 712 5 500 100 6 500 425 1,269 7 500 425 8 250 0 424 9 250 0 Total 4,050 2,050 3,454 Pumping 24/7/365 = 2,141 gpm

  9. IRON AND MANGANESE LEVELS Well No.IronManganese 6 1.27 ND 7 1.18 ND 8 0.13 0.39 9 ND 0.42 MCL 0.30 mg/L 0.05 mg/L

  10. Well No.Water Quality 2, 3, 4, & 5 Excellent; no Fe or Mn 6 and 7 High Iron; treatable 1, 8, and 9 High Manganese; Very expensive to treat

  11. RECOMENDATIONS Provide sufficient water supply to accommodate future growth • Drill additional test wells to the north and west of PWS-3 • Drill test wells along the south shore • Replace high manganese wells

More Related