News from 4/30/11 12:00am to 7/31/11 12:00am
- July 31, 2011
- 2010 Consumer Confidence Report
Water System Name:
Mountain Meadows Mutual Water
Report Date:
July 2011
We test the drinking water quality for many constituents as required by State and Federal Regulations.
This report shows the results of our monitoring for the period of January 1 - December 31, 2010.
Type of water source(s) in use:
Groundwater – 3 Wells
Name & location of source(s):
Mountain Meadows Mutual Water Company. Wells 1 and 4 are
located off of Meadow View Drive. Well 3 is located in the meadow behind Elderberry Drive.
Drinking Water Source Assessment information:
Mono County Health Department
Time and place of regularly scheduled board meetings for public participation:
Late summer or early fa11
At the Crowley Lake Community Center on South Landing Drive
For more information, contact
Blair Hafner
Phone:
(760) 935 – 4504
TERMS USED IN THIS REPORT:
Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in drinking water. Primary MCLs are set as close to the PHGs (or MCLGs) as is economically and technologically feasible. Secondary MCLs are set to protect the odor, taste, and appearance of drinking water.
Primary Drinking Water Standards (PDWS): MCLs for contaminants that affect health along with their monitoring and reporting requirements, and water treatment requirements.
Secondary Drinking Water Standards (SDWS): MCLs for contaminants that affect taste, odor, or appearance of the drinking water. Contaminants with SDWSs do not affect the health at the MCL levels.
ND: not detectable at testing limit
Ppm: parts per million or milligrams per liter (mg/L)
Public Health Goal (PHG): The level of a contaminant in drinking water below, which there is no known or expected risk to health. PHGs are set by the California Environmental Protection Agency.
Maximum Contaminant Level Goal (MCLG): The level of a contaminant in drinking water below, which there is no known or expected risk to health. MCLGs are set by the U.S. Environmental Protection Agency (USEPA).
Regulatory Action Level (AL): The concentration of a contaminant, which, if exceeded, triggers treatment or other requirements, which a water system must follow.
ppb: parts per billion or micrograms per liter (ug/L)
ppt: parts per trillion or nanograms per liter (ng/L)
pCi/L: picocuries per liter (a measure of radiation)
Microbial contaminants, such as viruses and bacteria that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
Inorganic contaminants, such as salts and metals, that can be naturally-occurring or result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming.
Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.
2001 Consumer Confidence Report.docOrganic chemical contaminants, including synthetic and volatile organic chemicals that are byproducts of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.
Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities.
Table 1 - sampling results showing the detection of coliform bacteria
Microbiological Contaminants
Highest No. of detections
No. of months in violation
MCL
MCLG
Typical Source of Bacteria
(In a mo.)
0
0
0
E. coli
(In the year)
0
0
E. coli
0
Table 2 - sampling results showing the detection of Lead and copper
Lead and Copper
No. of samples collected
90th percentile level detected
No. Sites exceeding AL
AL
MCLG
Typical Source of Contaminant
Lead (ppb)
2010 results
10
<.005
0
15
2
Copper (ppm)
2010 results
10
.75
0
1.3
0.17
TAble 3 - sampling results for sodium and hardness
Chemical or Constituent
(and reporting units)Sample Date
Level Detected
Range of Detections
MCL
PHG
(MCLG)
Typical Source of Contaminant
Sodium (ppm)
1/2007
8.4
none
none
Hardness (ppm)
32
none
none
Any violation of an MCL or AL is asterisked. Additional information regarding the violation is provided on the next page.
TAble 4 – detection of contaminants with a Primary Drinking Water Standard
Chemical or Constituent
(and reporting units)Sample Date
Level Detected
Range of Detections
MCL
PHG
(MCLG)
Typical Source of Contaminant
Fluoride (mg/L)
1/2007
<0.1
2
1
Nitrate (NO3) (mg/L)
3.2
45
45
MTBE (ug/L)
None detected
5
Radioactivity – Gross Alpha Particle Activity
15 pCi/L
Uranium
2010 Average
21.2 pCi/L
20 pCi/L
TAble 5 - detection of contaminants with a Secondary Drinking Water Standard
Chemical or Constituent
(and reporting units)Sample Date
Level Detected
Range of Detection
MCL
PHG
(MCLG)
Typical Source of Contaminant
Sulfate (mg/L)
2.8
250
Chloride (mg/L)
1/2007
1.5
250
Total Dissolved Solids (mg/L)
1/2007
101
500
Arsenic (ug/L)
1/2007
10
Zinc (mg/L)
1/2007
<0.03
5
1/2007
.30
Any violation of an MCL or AL is asterisked. Additional information regarding the violation is provided below.
Additional General Information On Drinking Water
All drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that the water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the USEPA’s Safe Drinking Water Hotline (1-800-426-4791).
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. USEPA/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).
The Mono County Health Department is still concerned about our Uranium level although the blending of water sources reduces the level. The Water Company has drilled a new well that meets water quality requirements and has begun construction to connect this well to the system.
The conservation of water is greatly appreciated.
- July 6, 2011
WELL 5 UPDATE - The work continues on the well 5 connection. You might have noticed that the main has now been placed across South Landing. At the same time, work has begun at the pump station, which includes hot taps and running mains to the Well 3 pump house.
We expect to run the main to the pump in the next two weeks including the installation of valving inside a vault. Power should be available to the site in the fall, at which time, we will install the pump and telemetry.
We are also working on the "plumbing" for the pump station and hope to have it completed about the same time, if funding allows.
- April 30, 2011
IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER
Este informe contiene información muy importante sobre su agua potable.
Tradúzcalo o hable con alguien que lo entienda bien.Mountain Meadows Mutual Water Company may exceed the levels of uranium above the Drinking Water Standard
Two of our source wells are above the state drinking water standard for uranium. The Mono County Health Department is not assured that the treatment process we currently implement is adequate to reduce uranium in the water to levels below the State and Federal standards. Although this is not an emergency, as our customers, you have a right to know what we are doing to address this situation.
We routinely monitor for the presence of drinking water contaminants as required by the County and State Regulations.
We have secured an additional water source and are currently installing the infrastructure necessary to connect the new well to the system and place the two wells that exceed the state drinking water standard for uranium into a “stand-by” mode.
What should I do?
• This is not an immediate risk. If it had been, you would have been notified immediately and advised to drink ONLY bottled water. However, some people who drink water containing uranium in excess of the MCL over many years may have kidney problems or an increased risk of getting cancer.
• If you have other health issues concerning the consumption of this water, you may wish to consult your doctor.
What is being done?
The Board is working with the Mono County Health Department to achieve compliance with County and State Requirements through the connection of a new well with negligible amounts of uranium. For more information, please contact Bill Archibald at 935.4991 or David Richman at 934.4263 or e-mailing board@mountainmeadowswater.com.
This notice is being sent to you by The Mountain Meadows Mutual Water Company.
State Water System ID#: 2600620. Date distributed: April 30, 2011.- April 30, 2011
Meter Readings - The first meter reading of the year occurred on April 30th. If your usage is high, depending upon when you stopped irrigation in the fall and started it in the spring, you might check for leaks in your system. If you have any questions, please contact the Board.
- April 30, 2011
WELL 5 UPDATE - Now that spring is here, the work to hook Well 5 into the system will continue. The last section of water main will be installed, along with electrical, telemetry and the pump. The relay pump, to be placed at the Well 3 site will most likely be installed in 2012 when sufficient capital is available.