2008 Water Quality Report
The Monroeville
Municipal Authority is Committed to Providing a High Quality Drinking Water that
Meets and/or Exceeds All Established Government Standards
The Monroeville Municipal Authority (MMA) is proud to present its 2008 Water Quality Report. This report provides
our customers with a summary of where their drinking water comes from, how it is
treated, and the results of water quality monitoring performed on a daily basis.
To meet the Environmental Protection Agency (EPA) ruling requiring all U.S.
water utilities to provide customers with this information, we will be mailing
our 2008 water quality report to all MMA customers by July 1, 2009.
The MMA has consistently met and exceeded drinking water standards established
by the Environmental Protection Agency (EPA), the Pennsylvania Department of
Environmental Protection (PADEP) and the Allegheny County Health Department (ACHD).
How do we do this? All of the employees at the MMA share the same goal – to
provide our customers with safe and reliable drinking water at the lowest rate
possible.
WHERE DOES MY DRINKING WATER COME FROM?
The MMA’s primary surface water supply
is the Allegheny River. The Allegheny River begins as a spring in a
farmer’s field in the upper Appalachian Mountains of northern
Pennsylvania. It then collects in the Allegheny Reservoir (Kinzua Dam) and
flows to the confluence with the Monongahela River. The Allegheny River
Watershed encompasses 11,770 square miles and includes most of Western
Pennsylvania and parts of South West New York. The MMA water is drawn from
the Allegheny River near Oakmont, Pennsylvania. The quality of the water
from the Allegheny River can be affected by mine acid drainage, sewage
treatment plant discharge, agriculture and livestock runoff, leaking
underground and under river pipelines, leaking chemical storage tanks,
river barges and railroad cars transporting chemicals. |
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HOW DO DRINKING WATER SOURCES BECOME POLLUTED?
As water travels over the surface of the land or through the
ground, it dissolves naturally occurring minerals and, in some cases,
radioactive material, and can pick up substances resulting from the presence of
animals or human activity. Contaminants that may be present in source water
include:
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Microbiological
contaminants (bacteria, viruses, protozoan, etc.) can come from sewage treatment
plants, septic systems, agricultural live stock operations, and wildlife. |
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Inorganic
chemical contaminants, such as salts and metals, which can be naturally
occurring or result from urban stormwater run off, industrial and/or
domestic wastewater discharges, oil and gas production, mining, or
farming. |
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Pesticides
and herbicides which may occur from a variety of sources such as
agriculture, urban stormwater runoff, and residential uses. |
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Organic
chemical contaminants, including synthetic and volatile organic
chemicals, which are byproducts of industrial processes and petroleum
production, and can also come from gasoline stations, urban stormwater
runoff, and septic systems. |
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Radioactive
contaminants, which can be naturally occurring or be the result of oil
and gas production, or mining activities. |
Este
informe contiene informacion muy importante sobre su agua de beber. Traduzcalo
o hable con alguien que lo entienda bien. (This report contains very
important information about your drinking water. Translate it or speak to
someone who understands it.)
ABOUT MONITORING FOR CRYPTOSPORIDIUM AND GIARDIA:
Cryptosporidium and Giardia are microscopic organisms that,
when ingested, can result in diarrhea, fever and other gastrointestinal
symptoms. These organisms are found in animal and human wastes, and enter the
rivers and streams when it rains, or from improperly operated sewage treatment
plants, livestock operations, and/or wildlife.
During 1998, 1999 the MMA's primary finished water supplier (WPJWA) was
required by the US EPA to participate in the Information Collection Rule. This
required the analysis of the source water from the Allegheny River and the
finished water supplied to our consumers for Cryptosporidium and Giardia for
eighteen months. At no time during this monitoring period were any Giardia,
Cryptosporidium, or total culturable viruses found in the finished water.
Cryptosporidium was only found once in the source water during the
eighteen-month monitoring period.
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DEFINITIONS OF TERMS AND ABBREVIATIONS USED:
Action Level -
The concentration of a contaminant, which, if exceeded, triggers a
treatment or other requirement which water systems, must follow. The
Action Level is not based on one sample, but instead it is based on many
samples.
Maximum Contaminant
Level (MCL) - The highest level of a contaminant that is allowed
in drinking water. MCL's are set as close to the MCLG's as feasible using
the best available treatment technology.
Maximum Contaminant
Level Goal (MCLG) - The level of a contaminant in drinking water
below which there is no known or expected risk to health. MCLG's allow for
a margin of safety.
ND –
Non-Detected
Not Applicable (n/a)-not
applicable
NTU -
Nephelometric Turbidity Units. An NTU is the unit of measurement for the
clarity of water. NTU’s are measured with an instrument called a
nephelometer.
Picocuries Per Liter (pCi/L) - A measure of radioactivity in water.
Parts Per Billion (ppb)
- One part per billion (or micrograms per liter). Equivalent to one penny
in $10,000,000 or approximately 1 second in 32.5 years.
Parts Per Million (ppm)
- One part per million (or milligrams per liter). Equivalent to one penny
in $10,000 or approximately 1 minute in 2 years.
Total Haloacetic Acids
(THAAs) - A group of chemicals called disinfection by-products
that form during chlorination. May be regulated in the future.
Total Trihalomethanes (TTHMs) - A group of chemicals called disinfection by-products that form
during chlorination. TTHMs form when natural organic matter in the river,
e.g., leaves and algae decompose and combine chemically with the chlorine
added for disinfection.
Treatment Technique (TT)
- A required process intended to reduce the level of a contaminant in
drinking water.
Turbidity - A measure
of the clarity of water related to its particle content. High turbidity
can hinder the effectiveness of disinfectants. |
ADDITIONAL TESTING PERFORMED
In response to those consumers who would like to see chemicals tested for, but not included in a year to year tally, we have included some in this year’s report. The US EPA only requires us to list those chemicals that are above the method detection level.
- Arsenic - was <1ppb- (the Maximum Contaminant Level of Arsenic is 10 ppb).
- VOC’s - (Volatile Organic Compounds) - All 20 were found to be below the lowest amount that the instrument could detect.
- Di (2 ethylhexyl) Phthalatte - a by-product of plastics- found at <0.5ppb (below the MCL of 6ppb).
- Cryptosporidium- after 2 years of testing, none were found in our plant’s intake water.
- Unregulated Contaminants - compounds that don’t yet have a drinking water standarad set by the US EPA. The purpose of monitoring for these contaminants is to help EPA decide whether the contaminants should have a standard.NDMA - (N - Nitrosodimethylamine) - was detected in our plant and distribution water at an average concentration of 3.7 parts per trillion (ppt). The range of detections of this compound during the year varied from <2 ppt to 7 ppt.. The EPA is proposing a minimum reporting level limit of 2ppt.Health Effects for this compound are that EPA considers NDMA to be a probable human carcinogen.
- Disinfection By-Products Stage 2 - This included Trihalomethanes and Haloacetic Acids at different points in our system than our normal sampling points. This data is included within our Range of Detections Data.
REQUIRED CCR STATEMENT ADDRESSING LEAD IN DRINKING WATER
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. Monroeville Municipal Authority is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at: http://www.epa.gov/safewater/lead.
HOW IS MY DRINKING WATER TREATED AND PURIFIED?
The MMA receives its primary supply of finished water for resale from the Wilkinsburg – Penn Joint Water Authority (WPJWA) system. Like the majority of water utilities in the U.S., the WPJWA uses a multi-step treatment process at their water treatment plant. River water is pumped from the Allegheny River to the treatment plant and chlorinated. The water is then coagulated (which means the smaller particles in the river water join together by adding chemicals, which encourage this attraction). The water is mixed to ensure that the added chemicals are well blended and reacting with all of the smaller particles. The water is allowed to settle so that the newly joined particles sink by gravity to the bottom of the sedimentation tanks. The sediment is then removed and sent to the Allegheny County Sanitation Authority (ALCOSAN) for treatment. The settled water is then filtered to remove any remaining particles. Chlorine is then again added to prevent the growth of bacteria during transport and storage.
The finished water enters the MMA system through two separate metered connections. By agreement with WPJWA, the MMA is permitted to withdraw 6.0 million gallons per day (mgd) of monthly average flow and 7.5 mgd of peak daily flow from the above connections. In addition to the primary source of supply, the MMA maintains two emergency interconnections with the Municipal Authority of Westmoreland County (MAWC) system. The MMA maintains four storage tanks to serve as a reserve for fire protection and to maintain adequate water pressure. These tanks have a combined capacity of 13.5 million gallons. The water is then delivered to your home or business through a network of over 165 miles of waterlines varying in size from 4 to 24 inches in diameter. If you desire more information about the quality of the water provided by the MMA, please call the MMA Manager, John A. Capor at (412) 372-2677 or log on to our web site at http://www.monroevillewater.org. The MMA Board of Directors meets at 7:00 p.m. on the fourth Monday of the month at 219 Speelman Lane, Monroeville, PA 15146, and these meetings are open to the public. The MMA water system identification number is 5020027.
WHY IS CHLORINE USED TO DISINFECT MY DRINKING WATER?
State and federal regulations require the disinfection of all public water supplies. The EPA and other health agencies recognize that using chlorine is one of the most effective ways to protect public health from disease causing organisms that can be found in surface waters. Because chlorine used alone can react with natural materials in the river water to chemically form disinfection by-products such as Total Trihalomethanes (TTHMs), the Authority has been evaluating chlorination procedures to reduce the formation of TTHMs. However, we will continue to ensure that the water distributed to your home has a sufficient "chlorine residual" to prohibit the growth of bacteria and other organisms, to not increase TTHMs, and to not have an offensive chlorine smell and/or taste.
WHAT’S IN MY WATER?
In order to ensure
that the water coming from your tap is suitable to drink, the EPA and the
Pennsylvania Department of Environmental Protection (PADEP) have established
regulations that limit the amount of certain chemicals in water provided for
public water systems. Refer to the attached charts detailing our water quality
test results for a complete listing of detected contaminants.
Drinking water,
including bottled water, may reasonably be expected to contain at least small
amounts of some contaminants. The presence of these contaminants does not
necessarily indicate that the water poses a health risk. To obtain more
information about chemicals and potential health effects, call the EPA's Safe
Drinking Water Hotline (1-800-426-4791) or visit their web site:
http://www.epa.gov/safewater
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Notice: Important Information
Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons, such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS, or other immune system disorders, some elderly, and infants, can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/Centers for Disease Control (CDC) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (1-800-426-4791). |
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PWS ID# 5020056
CONSUMER
CONFIDENCE REPORT 2008 (WPJWA 2008 DATA)
LISTED - Chemicals that were detected in WPJWA drinking water during 2008. Even though detected, all are
below the allowable levels.
NOT LISTED - More than fifty other chemicals which were tested for and not
found to be present including Unregulated Contaminants, Total Coliform
Bacteria, Inorganic Compounds, and Volatile & Synthetic organic
Compounds. These analyses were performed to determine the proper
treatment and ensure the quality of water produced. |
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Contaminant (Units) |
Violation |
MCL |
MCLG |
LEVEL DETECTED IN WPJWA WATER |
RANGE OF DETECTIONS |
MAJOR SOURCES OF CONTAMINANTS |
Turbidity (NTU)
|
No |
TT = 95% OF
samples < 0.3 NTU |
0 |
0.14 (a)
100% |
0.01 - 0.14 (a) |
Soil Runoff |
|
Barium (ppm) |
No |
2 |
2 |
0.03 (b) |
(c) |
Discharge of drilling wastes and
metal refineries; Erosion of natural deposits. |
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Cadmium (ppb) |
No |
5 |
5 |
0.8 (b) |
(c) |
Corrosion of galvanized pipes:
erosion of natural deposits; discharge from metal refineries; runoff from
waste, batteries and paint. |
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Chlorine (ppm)- entry point
Chlorine (ppm) - Distribution |
No
No |
MRDL=4
MRDL=4 |
MRDL=4
MRDL=4 |
0.28
0.38 |
0.28 - 1.10
0.14 - 0.38 |
Water additive used
to control
microbes. |
|
Floride (ppm) |
No |
2 |
2 |
1.02 |
0.80 - 1.36 |
Erosions of natural deposits;
discharge from fertilizer & aluminum factories. Water additive for strong teeth. |
|
Nitrate (ppm) |
No |
10 |
10 |
0.33 |
(c) |
Fertilizer runoff; sewage and septic tank leakage; erosion
of natural deposits. |
| Trihalomethanes (ppb) |
No |
80 |
n/a |
53 |
19 - 109 |
By-product of drinking water
chlorination. |
| Haloacetic Acids (ppb) |
No |
60 |
n/a |
6 |
ND - 20 |
By-product of drinking water
chlorination. |
| Total Organic Carbon (ppm) |
No |
TT |
n/a |
1.6 (e) |
1.2 - 2.1 (e) |
Naturally present in the
environment. |
| Beta/Photon emitters (pCi/L) |
No |
50 |
0 |
1.8 (b) (d) |
1.8 (b) (d) |
Decay of natural & manmade deposits. |
| Alpha Emitters (pCi/L) |
No |
15 |
0 |
.02 (b) (d) |
.02 (b) (d) |
Erosion of natural deposits |
| Uranium (ug/L) |
No |
30 |
0 |
< 1 (b) (d) |
< 1 (b) (d) |
Erosion of natural deposits |
| Combined radium (pCi/L) |
No |
5 |
0 |
0.1 (b) (d) |
0.1 (b) (d) |
Erosion of natural deposits |
| CORROSIVITY |
No |
TT |
n/a |
n/a |
n/a |
Tendency of water
to dissolve or deposit minerals and metals |
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90th Percentile Result of
Sample Site |
# of Sites Above Action Level |
Major Sources of Contaminant |
|
Lead (ppb) |
No |
AL=15 |
0 |
12 |
4 out of 55
Range (0 - 37)
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Corrosion of household plumbing
systems; erosion of natural deposits |
|
Copper (ppb) |
No |
AL=1.3 |
1.3 |
0.14 |
0 out of 50
Range (0 - .18) |
CONSUMER
CONFIDENCE REPORT 2008 (MMA 2008 DATA) |
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Organic Chemicals: |
Violation |
Highest level Allowed |
Ideal Goals (EPA's MCLG) |
Average Level Detected |
Highest & Lowest Level
Detected |
Major Sources of Contaminant |
|
Chlorine (ppm) |
No |
4 |
0.02 - 2.49 |
0.43 |
0.03 - 1.84 |
Water additive used to control
microbes. |
|
Haloacetic Acids (ppm)
Total Trihalomethanes (ppm) |
No
No |
60 (g)
80 (g) |
0
0 |
12
55 |
2 -- 39
23 -- 105 |
By-product of drinking water
chlorination |
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Corrosivity:
water samples from individual consumer taps |
|
EPA's (MCL)
Action Level |
EPA's (MCLG)
Ideal Goal |
90th Percentile Result of
Sample Site |
# of Sites Above Action Level |
Major Sources
of Contaminant |
|
Lead (ppb)
Copper (ppb) |
No
No |
15
1.3 |
0
1.3 |
4 (e)
0.077 (e) |
0 out of 30
0 out of 30 |
Corrosion of household plumbing
systems; erosion of natural deposits |
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(a) 100% of Turbidity samples met the
Turbidity limits specified in Section 141.73 of the Safe Drinking Water
Act.
(b) Testing required every nine (9) years.
(c) Only one (1) sample taken.
(d) 2002 Data - Compliance with the MCL may be assumed without further analysis if the
average annual concentration of Gross Beta Particle Activity is less than
50 pCi/l. The MCL for Beta particles is
4 mrem/yr. EPA considers 50
pCi/l to be level of concern for Beta particles.
(e) 2007
Data - testing required every three (3) years.
(f)
Alternative Compliance Criteria of less than or equals to 2.0 mg/L TOC met for
the year.
(g) Highest running annual average allowed. |
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All contaminants listed were
detected in Monroeville Municipal Authority drinking water during 2008,
unless otherwise stated, and all are below allowable levels. More
than 50 other contaminants were tested for and not detected in Monroeville
Municipal Authority drinking water. |
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