Camden Drinking Water Camden Drinking Water Investigation - - PowerPoint PPT Presentation

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Camden Drinking Water Camden Drinking Water Investigation - - PowerPoint PPT Presentation

Apr 19, 2023 183 likes •366 views

Camden Drinking Water Camden Drinking Water Investigation Investigation Ohi Ohi Ohio EPA Update Ohio EPA Update EPA U d t EPA U d t August 19, 2010 August 19, 2010 Key Points Key Points Key Points Key Points Water is safe Water

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Camden Drinking Water Camden Drinking Water Investigation Investigation

Ohi EPA U d t Ohi EPA U d t Ohio EPA Update Ohio EPA Update August 19, 2010 August 19, 2010

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Key Points Key Points Key Points Key Points

  • Water is safe

Water is safe

  • Tap water meets health-based standards

W t t t i t bl

  • Water taste is unacceptable
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Overview Overview Overview Overview

  • Investigation
  • Investigation
  • Water test results
  • Source of contamination
  • Water treatment
  • Response
  • Response
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Investigation Investigation Investigation Investigation

  • Drinking water complaint received

Drinking water complaint received

  • On-site investigation findings

– Salt pile identification Salt pile identification – Active drain line from salt pile Field testing of water in distribution – Field testing of water in distribution

  • Provided education information on sodium
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Investigation Investigation Investigation Investigation

  • Follow-up investigation

Follow up investigation – Confirmation of road salt contaminants in drinking water supply g pp y – Continued increase in road salt contaminants

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Investigation Investigation Investigation Investigation

  • Road salt contaminants

Road salt contaminants – Salt (sodium and chloride) – Cyanide (Well #3 only) Cyanide (Well #3 only)

  • The existing well field will be impacted for an

unknown period unknown period

  • Tap water continues to meet all health-based

drinking water standards d g ate sta da ds

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Water Test Results Water Test Results Water Test Results Water Test Results

  • Sodium: Detected at increased levels

– A health risk standard for sodium has not been established by U.S. EPA – Health concern for individuals on a sodium restricted diet

  • Chloride: Detected at increased levels

– Secondary standard for chloride because of y its effect on taste

  • Cyanide: Not detected in Well #2 or tap water
  • Cyanide: Not detected in Well #2 or tap water
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Sodium Comparison Sodium Comparison Sodium Comparison Sodium Comparison

Soda pop 150 – 450 mg/L Soda pop 150 450 mg/L Camden Well #2 200 mg/L Domestic softened water 300 mg/L Sports drink 450 mg/L Camden Well #3 660 mg/L Canned chicken noodle soup 5000 mg/L

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Source of the Contamination Source of the Contamination Source of the Contamination Source of the Contamination

  • Two large salt piles located north of the well field

Two large salt piles located north of the well field – Previously identified as potential source of contamination by Ohio EPA y

  • Unauthorized discharges

– Ohio EPA Notice of Violation Ohio EPA Notice of Violation

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August 3, 2010

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August 4, 2010

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August 5, 2010

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Salt piles Salt piles Drain line discharge Drain line discharge Well field Well field

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Water Treatment Water Treatment Water Treatment Water Treatment

  • Camden treats groundwater with disinfection

Camden treats groundwater with disinfection

  • nly
  • Current treatment cannot remove salt
  • Tap water is safe for all purposes

– No health-based standards for salt in drinking No health based standards for salt in drinking water – Does affect taste

  • es a ect taste
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Response Response Response Response

  • Requested removal of of drain line

Requested removal of of drain line – A portion of the drain has been removed

  • Asked for salt piles to be covered

Asked for salt piles to be covered

  • Initiated groundwater investigation

Where salt is – Where salt is – Where salt is going Find ways to minimize impacts to well field – Find ways to minimize impacts to well field

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Response Response Response Response

  • Ongoing testing of raw and finished water

Ongoing testing of raw and finished water – Daily samples with field kit – Weekly samples sent to Ohio EPA approved Weekly samples sent to Ohio EPA approved laboratories

  • Ohio EPA drilling rig is sampling groundwater

Ohio EPA drilling rig is sampling groundwater

  • Camden continues to provide bottled water for

those who request it t ose

  • equest t
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Response Response Response Response

  • Camden is currently looking for a new water

Camden is currently looking for a new water source – Identified potential new well sites p – Possible connection to a neighboring water system y

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Contacts Contacts Contacts Contacts

Ohio EPA Ohio EPA Erika Wiggins (614) 644-2160 (614) 644-2160 erika.wiggins@epa.ohio.gov Preble County Health District Melissa Wallace Melissa Wallace

  • (937)472-0087

M li @ bl t h lth

  • Melissa@preblecountyhealth.org