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, 2016.  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.  The following definitions are important:

 

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

 

 

 

Contaminant

Date Tested

 

Unit

 

MCL

 

MCLG

Detected
Level/Range
Major Sources Violation
Inorganic
Barium
2/1/2016 ppm 2 2 0.036 Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits
NO
Inorganic
Fluoride*
2/1/2016 ppm 2 2 0.7 Erosion of natural deposits; Water additive for dental health; Discharge from fertilizer and aluminum factories NO
Inorganic
Nickel
2/1/2016 ppb 100 100 1.7 Manufacturing by-product, runoff from fertilizer and aluminum factories NO
Inorganic
Nitrate
7/20/2016 ppm 10 10 0.7 Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits NO
Inorganic
Niitrite
7/20/2016 ppm 1 1 0 Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits NO

*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
Symthetic Organic
Di(2-ethylhexyl)
phthalate
2016
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 2016 NTU TT1 0 0.078 100% 9/16 Soil
Runoff
NO

1 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 2016 % Removed 25 – 35% 36-71% 0 NO

 

Inorganics Date Tested Unit AL MCLG 90thPercentile
Value
Sites Above AL Major Sources Violation
Lead Jun – Jul 2016 ppm 15 0 11.6 4 of 54
Corrosion of household plumbing systems; Erosion of natural deposits NO
Copper Jun – Jul 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 2016 ppb 80 N/A 44.0 20.3-60.6 By-product of drinking water chlorination NO
HAAs [Total
Haloacetic Acids]
Year 2016 ppb 60 N/A 11.9 6.2-27.7
By-product of drinking water chlorination NO

 

Disinfectants Date Tested Unit Min RDL Lowest
Detect
Range of Monthly Average Major Sources Violation
Chlorine
(Entry Point)
Year 2016 ppm 0.2 1.11 1.11 – 1.96 Water additive used to control microbes NO
Chloramines (Entry Point @ Spray Reservoir) Jun – Nov 2016 ppm 0.2 0.92 0.92 – 2.01 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
2016
ppm 4 4 1.38 0.70-1.38 Water additive used to control microbes NO
Chloramines (Distribution/Zone B) Jun – Nov 2016 ppm 4 4 1.04 0.74-1.04 Water additive used to control microbes NO

 

2016 Consumer Confidence Report