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Lab Tests for Locals
Eastern Madera County and Mariposa County of California
Madera County Health Department, which has an office in Oakhurst, offers their Mt.Pack water test panel for only $101. This is intended for wells above 500 feet elevation.The well owners can perform the test themselves, following the instructions which come with the test bottles, supplied by the County. For more specific instructions and information, please see "Download Lab Forms" at bottom of page.
MADERA COUNTY MOUNTAIN PACK WATER TESTING INFORMATION
Madera County Environmental Health recommends that you test your water regularly to ensure its quality. Water quality testing can be obtained from different sources such as private laboratories and County Health Departments. The Madera County Public Health Department offers this service.
This handout provides information on how to use this service, cost, where to obtain the sample bottles, how to sample, where to return the containers once they are full and what the results mean. Results are usually mailed directly to you approximately 8 weeks after you have turned in your samples.
PICK UP AND DROP OFF LOCATIONS
Sample bottles can be picked up and dropped ofF at the Madera County Health Department located at two locations:
Madera County Public Health Department
14215 Road 28
Madera CA 93638Samples are accepted
Monday thru Wednesday 8:00 am — 4:30 pm and
Thursdays from 8:00am til Noon. (559) 675-7893Madera County Public Health Department
40169 Highway 49
(Between Capitol Pipe and The Oakhurst Living Center)
Oakhurst CA 93644Samples are accepted
Mondays from 8:00 am til Noon. (559) 658-7456
WHERE AND HOW TO SAMPLE (Mt. Pack)
You have been given two plastic quart bottles and one small 1 00 ml bottle. The larger plastic bottles are marked A and B, the small bottle is for Coliform Bacteria.
Bottle A: It is recommended that sample bottles A be taken at a faucet as close to the well as possible. Run water for five minutes, open the bottle and fill to top, close. Store in a refrigerated place. This bottle to sample is for Aluminum, Arsenic, Fluorides, Iron, Gross Alpha, Manganese, Nitrate and pH.
Bottle B: (First Draw Test) This should be the first water out of an inside faucet after it has been in the pipes for at least six hours (the first water out of a faucet in the morning will work). Fill to top and close. Store in a refrigerated place. This bottle is to sample for Lead and Copper.
Small 100 ml bottle for Coliform Bacteria testing: This bottle is sterile and should not be opened until you are ready to fill it with water. The powder inside is Sodium Thiosulfate and is used to neutralize any chlorine in the water. The faucet should be clean, in good working order and far enough away from obstructions so that the sample bottle can be easily maneuvered to collect a sample without being contaminated. Turn on the\ faucet so that the water flow is a smooth steady stream of water. None of the water flow should touch the outside of the faucet. Let the water run for at least five minutes. Do not adjust the flow during the five minutes. Remove the shrink wrap from the test bottle, with one hand on the bottle and one hank on the lid, remove the lid fill the bottle and close the lid.
Download Local Lab Form
Madera County Mountain Pack Form
For more detailed testing download this form:
Madera County Chemical & Bacteriological Analyses of Drinking Water
If you don't already have the Acrobat PDF reader,
Click the icon below to go to Adobe site to download it.
