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EWG INVESTIGATION

 

Findings

About The Data

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EWG Statement, 03/10/2008

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WHAT'S IN YOUR WATER?

 

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City of Mccall Water


NATIONAL SUMMARY

 

Quality Varies Across the U.S.


CONTAMINANTS DATABASE

 

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Top Contaminants of Concern based on government health limits
 Total trihalomethanes (TTHMs) 
 Chloroform 
 Bromodichloromethane 

Local Water System Report

City of Mccall Water

Mccall, ID
Serves: 3,000 people

An Environmental Working Group analysis of tap water tests from 1998 through 2002 shows that customers of City of Mccall Water drank water containing up to 5 pollutants. City of Mccall Water is one of 65,000 water suppliers across the country wrestling with treating water polluted by sprawl, sewage, factory farms, and industry.

 

Pollution Summary

5Total Contaminants Detected (1998 - 2002)

Alpha particle activity (excl radon and uranium), Alpha particle activity (incl. radon & uranium), Chloroform, Bromodichloromethane, Total trihalomethanes (TTHMs)

0Agricultural Pollutants
(pesticides, fertilizer, factory farms)

0Sprawl and Urban Pollutants
(road runoff, lawn pesticides, human waste)

2Industrial Pollutants

Alpha particle activity (excl radon and uranium), Alpha particle activity (incl. radon & uranium)

3Water Treatment and Distribution Byproducts
(pipes and fixtures, treatment chemicals and byproducts)

Chloroform, Bromodichloromethane, Total trihalomethanes (TTHMs)

2Naturally Occurring
(naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

Alpha particle activity (excl radon and uranium), Alpha particle activity (incl. radon & uranium)


52
00
00
20
33
20
Total pollutantsAgricultural pollutantsSprawl and Urban pollutantsIndustrial pollutantsWater Treatment and Distribution ByproductsNaturally occurring pollutants
Number of pollutants detected (1998 - 2002) Over health based limits
Note: Some pollutants may be in more than one category.

NOTE: Health based limits included in this analysis include enforceable drinking water limits (called Maximum Contaminant Limits, or MCLs) as well as governmental, non-enforceable health guidelines, such as Maximum Contaminant Limit Goals (MCLGs), lifetime health advisory levels, one-day and ten-day advisory levels to protect children from non-cancer health endpoints, and other government-established health guidelines for tap water contaminants.

 

Health Summary

Contaminants found in your tap water (1998 - 2002): 5

Health effects or target organs of contaminants found: Cardiovascular or Blood Toxicity, Cancer, Developmental Toxicity, Endocrine Toxicity, Kidney Toxicity, Gastrointestinal or Liver Toxicity, Neurotoxicity, Reproductive Toxicity, and Respiratory Toxicity.

View Details


Contaminants found above health based limits: 2*

Contaminants listed may not have exceeded legal limits, which are set to balance cost and benefits and are often higher than health-based limits - see note below.

Contaminant NameAverage ResultMaximum ResultHealth Limit ExceededHas Legal LimitLegal Limit Exceeded
Bromodichloromethane0.75 ppb0.8 ppbYesYesNo
Disinfection by-product
Chloroform40.1 ppb44 ppbYesYesNo
Disinfection by-product
Total trihalomethanes (TTHMs)40.85 ppb44.7 ppbYesYesNo
Measure of four disinfection by-products

* This table contains one or more listings for a chemical group which comprises individual chemicals that are also listed in the table. The chemical group is not counted separately in numbers presented for total chemicals detected.

NOTE: Health based limits included in this analysis include enforceable drinking water limits (called Maximum Contaminant Limits, or MCLs) as well as governmental, non-enforceable health guidelines, such as Maximum Contaminant Limit Goals (MCLGs), lifetime health advisory levels, one-day and ten-day advisory levels to protect children from non-cancer health endpoints, and other government-established health guidelines for tap water contaminants.

 

Testing Summary

Contaminants reported as tested by this water supplier: 67
 Contaminants with federal legal limit in tapwater,
with testing required for most water systems:
73
 Regulated contaminants tested
(chemicals with federal legal limits in tapwater):
64
 Unregulated contaminants tested
(chemicals without federal legal limits in tapwater):
3

View Full Testing Summary

 

Violation Summary

Total Violations:4
Health Violations:1
Monitoring Violations:3

View Full Violation Summary

Information on violations is drawn directly from EPA's national violations database in the Agency's Safe Drinking Water Information System. Analyses by others have raised questions about the quality of the information in EPA's database. For the purposes of this investigation, EWG is not showing below or including in our analyses, those violations for individual water suppliers that occurred on days for which the total number of violations assigned by EPA to that water supplier was greater than 20. This criteria was based on common characteristics of incorrect violations data as identified by water utilities, from a review of EPA's violations data by several hundred utilities prior to the release of EWG's investigation.