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2008 Consumer Confidence Report & Annual Water Supply Statement
Sky Ridge
Consumer Confidence Report For
Customers of Sky Ridge Water District
Public Water System ID# NY 3304337
The Onondaga County Water Authority (by contract) is responsible for maintaining the water system for customers residing in the Skyridge Water District. The Skyridge Water district is located in Manlius, NY and contains 29 houses (a population of about 100) on Gulf Road and Horseshoe
Lane. The district is fed by 2 wells. Well #1 is located on the southern tine of Horseshoe Lane about 800 ft. east of Gulf Rd. Well #1 feeds the
area an average of 2,219 gallons per day. Well #2 is located on Gulf Rd. about 1000 ft north of Horseshoe Lane’s northern tine. Well #2 feeds
an average flow of 3,661 gallons per day. The system also has a 50,000 gallon storage tank.
The New York State Department of Health has
completed the Source Water Assessment for the Skyridge Water District system.
The only treatment this water receives is disinfection by the addition of chlorine. The chlorine level in the system is checked daily by a resident
and daily inspections are made to the chlorination facilities by OCWA personnel. Testing for bacteria is performed weekly and additional
monitoring for chemical contaminants is done on a schedule which meets or exceeds requirements set by the New York State Sanitary Code.
Below is a list of contaminants found in your water in 2008. In cases where a contaminant is tested for less than once per year, the most
recent results (prior to 2008) are included. Please refer to the main part of OCWA’s Consumer Confidence Report for more information and for
a listing of abbreviations used. Entry point samples are taken at the effluent of the chlorination buildings. Distribution system samples are taken
at taps within the district.
Detected contaminants in the distribution system
Copper and lead in the distribution system
Likely source: Copper and lead: corrosion of household plumbing systems, erosion of natural deposits. Copper only: leaching from wood preservatives
|
Violation yes/no
|
Sampling date(s)
|
Average of 2 highest
(range)
|
Units
|
MCLG
|
Regulatory limit (MCL, TT, or AL)
|
| Copper |
|
No
|
Sep 08
|
0.105
(.058 -0.11)
|
mg/L
|
1.3
|
AL = 1.3
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| Lead |
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No
|
Sep 08 |
6.2
(2.3-7.6)
|
µg/L
|
0
|
AL = 15
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About lead & copper: OCWA must test a minimum of 5 houses in this district every 3 years for lead & copper. In 2008 OCWA sampled
6 homes. The highest and second highest concentrations of Lead/Copper of these 6 homes were then averaged together. This result must be at or below the Action Levels or corrosion control treatment techniques must be started. In 2008 none of the houses tested
were above the Action Level for lead or copper. OCWA will test for Lead and Copper again in 2011.
Disinfection residual & disinfection by-products
Likely source: Added to water to kill harmful bacteria and to prevent the regrowth of bacteria.
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Violation yes/no
|
Sampling date(s)
|
Average level found
(range)
|
Units
|
MCLG
|
Regulatory limit (MCL, TT, or AL)
|
| Chlorine, free, residual |
|
No
|
weekly
|
0.78
(0.40 -1.29)
|
mg/L
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NA
|
4 (MRDL)
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Likely source: By-product of drinking water chlorination. TTHMs form when source water contains large amounts of organic matter.
| Trihalomethanes (TTHMs) |
|
No
|
Aug 08 |
14.5
(14-15)
|
µg/L
|
NA
|
80
|
Likely source: By-product of drinking water chlorination.
| Haloacetic acids (HAAs) |
|
No
|
Aug 08
|
4.5
(3.5-5.4)
|
µg/L
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NA
|
60
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About chlorine:
Chlorine is added to your water in order to kill bacteria. In 2008 OCWA took
weekly bacteriological samples along with the weekly chlorine sample. All 53
samples were negative for coliform bacteria; no violations occurred.
Disinfection by-products: During disinfection, certain by-products form as a
result of chlorine reacting with naturally occurring
organic matter. The disinfection process is carefully
monitored so that disinfection is effective, while
levels of disinfection by-products are kept low.
Trihalomethanes (THMs) and haloacetic acids (HAAs) are
classes of chemicals that OCWA is required to monitor
in its distribution system.
Detected contaminants sampled at the entry point
Likely source: Discharge of drilling wastes, discharge from metal refineries, erosion of natural deposits.
| Violation yes/no |
Sampling date(s) |
Average level found
(range) |
Units |
MCLG |
Regulatory limit (MCL, TT, or AL) |
| Gross Alpha Activity, Well #2 |
| No |
Composite Mar, Jun, Sep, Nov |
2.19 |
pCi/L |
0 |
15 |
Likely source: Discharge of drilling wastes, discharge from metal refineries, erosion of natural deposits.
| Barium, well #1 |
|
No
|
Jul 08
|
0.22 |
mg/L
|
2
|
2
|
| Barium, well #2 |
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No
|
Jul 08
|
0.24 |
mg/L
|
2
|
2
|
Likely source: Naturally occurring
| Calcium, well #1 |
|
No
|
Jul 08
|
90 |
mg/L
|
NA
|
NA
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| Calcium, well #2 |
|
No
|
Jul 08
|
82 |
mg/L
|
NA
|
NA
|
Likely source: Naturally occurring, road salts
| Chloride, well #1 |
|
No
|
Jul 08
|
77 |
mg/L
|
NA
|
250
|
| Chloride, well #2 |
|
No
|
Jul 08
|
38
|
mg/L
|
NA
|
250
|
Likely source: Erosion of natural deposits
| Chromium, well #1 |
| No |
Jul 08 |
1.5 |
µg/L |
100 |
100 |
| Chromium, well #2 |
| No |
Jul 08 |
1.1 |
µg/L |
100 |
100 |
Likely source: Natural color may be caused by decaying leaves, plants, and soil organic matter, minerals such as copper, iron, and manganese
| Color, well #1 |
| No |
Jul 08 |
2 |
units |
NA |
15 |
| Color, well #2 |
| No |
Jul 08 |
2 |
units |
NA |
15 |
Likely source: Corrosion of household plumbing systems, erosion of natural deposits, leaching from wood preservatives
| Copper, well #1 |
|
No
|
Jul 08
|
0.0092 |
mg/L
|
1.3
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AL = 1.3
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| Copper, well #2 |
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No
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Jul 08
|
0.0012
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mg/L
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1.3
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AL = 1.3
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Likely source: Erosion of natural deposits, discharge from fertilizer. OCWA adds no fluoride to this water.
| Fluoride, well #1 |
|
No
|
Jul 08
|
0.28
|
mg/L
|
NA
|
2.2
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| Fluoride, well #2 |
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No
|
Jul 08
|
0.22 |
mg/L
|
NA
|
2.2
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Likely source: Naturally occurring
| Magnesium, well #1 |
|
No
|
Jul 08
|
20
|
mg/L
|
NA
|
NA
|
| Magnesium, well #2 |
|
No
|
Jul 08
|
17 |
mg/L
|
NA
|
NA
|
Likely source: Erosion of natural deposits
| Nickel, well #1 |
|
No
|
Jul 08
|
5.5 |
µg/L
|
NA
|
NA
|
| Nickel, well #2 |
|
No
|
Jul 08
|
4.4 |
µg/L
|
NA
|
NA
|
Likely source: Runoff from fertilizer use, leaching from septic tanks, sewage, erosion of natural deposits
| Nitrate, well #1 |
|
No
|
Aug 08
|
2.8 |
mg/L
|
10
|
10
|
| Nitrate, well #2 |
|
No
|
Aug 08
|
3.2
|
mg/L
|
10
|
10
|
Likely source: Erosion of natural deposits
| Radium 226, well #2 |
|
No
|
Composite Mar, Jun, Sep, Nov |
0.699
|
pCi/L
|
0
|
5
|
Radium 228:
The MCL for combined radium 226 and 228 is 5 pCi/L. this sample was found to
have 0.699 pCi/L of radium 226. Radium 228 was not detected.
Likely source: Discharge from petroleum & metal refineries; erosion of natural deposits; discharge from mines
| Selenium, well #1 |
|
No
|
Jul 08
|
1.1 |
µg/L
|
50
|
50
|
Likely source: Naturally occurring, road salts, water softeners, animal wastes
| Sodium, well #1 |
|
No
|
Jul 08
|
47 |
mg/L
|
NA
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See note.
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| Sodium, well #2 |
|
No
|
Jul 08
|
27 |
mg/L
|
NA
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See note.
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Health effects of sodium: Sodium has no MCL,
but water containing more than 20 mg/L of sodium
should not be used for drinking by people on severely
restricted sodium diets. Water containing more than
270 mg/L of sodium should not be used for drinking by
people on moderately restricted diets.
Likely source: Naturally occurring
| Sulfate, well #1 |
|
No
|
Jul 08
|
29 |
mg/L
|
NA
|
250
|
| Sulfate, well #2 |
|
No
|
Jul 08
|
24 |
mg/L
|
NA
|
250
|
Likely source: Leaks from gasoline tanks, discharge from petroleum factories, leaching of solvent from lining of potable water tanks
| m-Xylene, well #1 |
|
No
|
Jul, Aug, Nov 08
|
0.84
(ND-0.84)
|
µg/L
|
NA
|
5
|
Likely source: Leaks from gasoline tanks, discharge from petroleum factories, leaching of solvent from lining of potable water tanks
| o-Xylene, p-Xylene, well #1 |
|
No
|
Jul, Aug, Nov 08
|
0.54
(ND-0.54)
|
µg/L
|
NA
|
5
|
o-Xylene and p-Xylene:
The reported values may represent either of these compounds or a combination thereof.
Likely source: Naturally occurring, mining waste
| Zinc, well #1 |
|
No
|
Jul 08
|
0.30 |
mg/L
|
NA
|
5
|
| Zinc, well #2 |
|
No
|
Jul 08
|
0.15
|
mg/L
|
NA
|
5
|
About radon
Radon is a naturally occurring radioactive gas found
in soil and outdoor air that may also be found in
drinking water and indoor air. Some people exposed to
elevated radon levels over many years in drinking
water may have an increased risk of getting cancer.
The main risk is lung cancer from radon entering
indoor air from soil under homes. For additional
information call your state radon program
(800-458-1158) or call EPA’s Radon Hotline
(800-SOS-RADON).
In anticipation of the EPA adopting regulations for radon in ground water
systems OCWA tested for it on three occasions in 2008. Both of the wells in
the Skyridge Water District were tested using the effluents of the Chlorination
Buildings as sampling points.
"The average amount of Radon detected in Well #1 was 130 pCi/L. This ranged from 123 pCi/L in August to 136 pCi/L in February. The average amount of Radon detected in Well #2 was 483 pCi/L. This ranged from 391 pCi/L in February to 575 pCi/L in August.
Other useful information
Your water’s pH is about 7.5.
Your water’s hardness is about 19 grains per gallon
(about 325 ppm CaCO3).
Source water assessment
The NYS DOH has completed a source water assessment for this system, based on available information. Possible and actual threats to this
drinking water source were evaluated. The state source water assessment includes a susceptibility rating based on the risk posed by each potential
source of contamination and how easily contaminants can move through the subsurface to the wells. The susceptibility rating is an estimate of the
potential for contamination of the source water, it does not mean that the water delivered to consumers is, or will become contaminated. See “Table
of Detected Contaminants” section for a list of the contaminants that have been detected.
The source water assessments provide resource
managers with additional information for protecting source waters into the future. Water suppliers and county and state health departments will use
this information to direct future source water protection activities. These may include water quality monitoring, resource management, planning,
and education programs.
As mentioned before, your water is derived from 2 drilled wells. The source water assessment has rated these wells as having a medium-high to
high susceptibility to microbials and nitrates. These ratings are due primarily to the close proximity of a permitted discharge facility (industrial/
commercial facilities that discharge wastewater into the environment and are regulated by the state and/or federal government) and a septic system
as well as low intensity residential activity in the assessment area. In addition, the wells draw from fractured bedrock, and a lower permeability layer
exists above the aquifer. While the source water assessment rates your wells as being susceptible to microbials, please note that your water is
disinfected to ensure that that the finished water delivered into your home meets New York State’s drinking water standards for microbial
contamination.
A copy of the assessment, including a map of the assessment area, can be obtained by contacting us, as noted below. Phone numbers
Questions about water quality: Bob Rusyn, 315-673-4304 x11
Onondaga County Health Dept, questions about Source Water Assessment
Program: 315-435-6600
EPA’s Safe Drinking Water Hotline: 800-426-4791.
More information:  or 315-455-7061
After hours & weekend emergency answering service 315-475-7601
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