Confidence Report 2

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What Do The Following Tables Mean?

The tables in this report show the results of our water-quality analyses for January 1 to December 31, 2017.  Every regulated contaminant that we detected in the water, even in the most minute traces, is listed here. The table contains the name of each substance, the highest level allowed by regulation (MCL), the ideal goals for public health, the amount detected, the usual sources of such contamination, footnotes explaining our findings, and a key to units of measurement.  The State allows us to monitor for some contaminants less than once per year because the concentrations of these contaminants do not change frequently.  Some of our data, though representative, are more than one year old. Although we ran many tests, only the listed substances were found.  They are all below the MCL required. We are pleased to report that your drinking water meets or exceeds all Federal and State requirements. 

 

Abbreviations and Definitions:

Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.

Maximum Contaminant Level Goal (MCLG): The level of contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

Maximum Residual Disinfectant Level (MRDL): The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.

Maximum Residual Disinfectant Level Goal (MRDLG): The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbes.

Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.

Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.

 

Key To Contaminant Lists
NTU = Nephelometric Turbidity Units (measure of water clarity) N/A  = Not Applicable
ppb = parts per billion, or micrograms per liter (µg/l) ppm = part per million, or milligrams per liter (mg/l)
MinRDL= minimum level of residual disinfectant required at the entry point to the distribution system

 

 

2017 Test Results

 

Contaminant

Date Tested

 

Unit

 

MCL

 

MCLG

Detected
Level/Range
Major Sources Violation
Inorganic
Barium 1/30/2017 ppm 2 2 0.031 Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits
NO
Fluoride1 1/30/2017 ppm 2 2 0.5 Erosion of natural deposits; Water additive for dental health; Discharge from fertilizer and aluminum factories NO
Nickel
1/30/2017 ppb 100 100 1.5 Manufacturing by-product, runoff from fertilizer use NO
Nitrate 8/3/2017 ppm 10 10 0.7 Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits NO
Niitrite
8/3/2017 ppm 1 1 <0.1 Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits NO

1 EPA’s MCL for fluoride is 4 ppm.  However, Pennsylvania has set a lower MCL to better protect human health.

 

Contaminant Date
Tested
Unit MCL MCLG Detect
Level/Range
Major Sources Violation
Synthetic Organic
Di(2-ethylhexyl)
phthalate
2017
ppb 6 0 <0.6 Discharge from rubber and chemical factories NO

 

Contaminant Date Tested Unit MCL MCLG Highest
Detect
Lowest
Percentage
Date Major Sources Violation
Turbidity 2017 NTU TT2 0 0.091 100% 5/17, 9/17 Soil Runoff NO

TT = 1 NTU for a single measurement and TT = 95% of monthly samples <0.3 NTU

 

Contaminant Date Tested Unit % Removal Required % Removal Achieved # of Quarters out of Compliance Violation
Total Organic Carbon 2017 % Removed 25 – 35% 38 – 61% 0 NO

 

Inorganics Date Tested Unit AL MCLG 90thPercentile
Value
Sites Above AL Major Sources Violation
Lead Jun – Sep 2016 ppm 15 0 11.6 4 of 54
Corrosion of household plumbing systems; Erosion of natural deposits NO
Copper Jun – Sep 2016 ppm 1.3 1.3 0.09 0 of 54
Corrosion of household plumbing systems; Erosion of natural deposits NO

 

Disinfection
Byproducts
Date Tested Unit MCL MCLG Highest
Running Average
Range Major Sources Violation
TTHMs [Total
Trihalomethanes]
Year 2017 ppb 80 N/A 46.1 17.4 – 68.8 By-product of drinking water chlorination NO
HAAs [Total
Haloacetic Acids]
Year 2017 ppb 60 N/A 12.5 4.9 – 18.2
By-product of drinking water chlorination NO

 

Disinfectants Date Tested Unit MinRDL Lowest
Detect
Range of Monthly Average Major Sources Violation
Chlorine
(Entry Point)
Year 2017 ppm 0.2 0.74 0.74 – 1.95 Water additive used to control microbes NO
Chloramines
(Entry Point @ Spray Reservoir)
Jun – Nov 2017 ppm 0.2 0.73 0.73 – 2.02 Water additive used to control microbes NO

 

Disinfectants Date Tested Unit MRDL MRDLG Highest
Monthly
Average
Range of
Monthly
Average
Major Sources Violation
Chlorine
(Distribution / Zone A)
Year
2017
ppm 4 4 1.29 0.65 – 1.29 Water additive used to control microbes NO
Chloramines
(Distribution / Zone B)
Jun – Nov 2017 ppm 4 4 0.96 0.76 – 0.96 Water additive used to control microbes NO

 

 

Unregulated Contaminant Monitoring Rule (UMCR):

Unregulated contaminants are those for which the EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted.  In addition to testing we are required to perform, our water system voluntarily tests for hundreds of additional substances and microscopic organisms to make certain our water is safe and of high quality. If you are interested in a more detailed report or have any questions about West View Water Authority and our water quality, contact Scott McNicol, West View Water Authority Production Manager, at (412) 931-3292.

 

Unregulated Contaminant Date Tested  Unit
Detection Limit  Average   Range  Major Sources
Violation
Strontium Year 2015 ppb 0.3 110 110 Naturally-occurring element used in making CRT televisions. NO
Chromium, Hexavadent Year 2015 ppb 0.03 0.05 0.04 – 0.06 Naturally-occurring element used in making steel and other alloys. NO
Bromide Year 2017 ppb 10 40 0 – 120 Naturally-occurring element; used in hydraulic fracturing to extract natural gas from shale.

NO

 

Additional Testing:

Volatile Organic Compounds (VOCs):  No VOCs were detected during the 2017 reporting year.

Radiological Analysis: Radiological Analysis was conducted during the 2011 reporting year, resulting in non-detects for all parameters.

 


 

Download – WVWA 2017 Consumer Confidence Report