Monday, January 5, 2015

Water Test Kits Private Well Water Dinking Water Testing

Water Test Kits - Private Well Owner Guide - Get Your Water Tested - Get a Kit !
On the federal level,  there are no specific construction standards for private wells, but some states and local agencies have passed standards related to siting, construction, testing, and maintenance.   Even if this is the case, the guidelines, standards, or regulations require the well owner to be the manager of their own drinking water supply.    This is only a short summary of the information and general recommendations for private well owners. 
There are a number of steps to this process and well will break them down as follows:
Well Placement
Well Construction
Well Testing (Yield and Quality)
Well Maintenance
Annual Water Testing
Well Placement
In general, the primary guidance with to water well placement in Pennsylvania is that a water well should be 100 feet from a septic system (regulated), 50 feet from a septic tank (regulated), 10 feet from a sewer line under pressure (regulated), and 10 feet from a property line. To be honest, these isolation distance do not consider impacts from other natural conditions or activities.  In general, we  would recommend the following:
1. If possible, the private well owner should control all activities within a 50 to  100 foot radius of the wellhead, i.e.., top of the water well. These activities should include: use of pesticides and herbicides, storage of toxic or hazardous chemicals, storage or management of manure and other waste, diversion of surface water and runoff, overuse of the area by grazing animals, location of burrow pits, burn pipes, rubbish storage, or storage of used cars or other items that may contain antifreeze, oils, and greases.
2. Well casing should extend at least 12 inches above grade.
3. Well should be fitted with a sanitary well cap that has some form of venting.
4. The well should be located at least 10 feet from a property line.
Other suggested isolation distances
Delineated wetlands or floodplains (25 feet)- with top of casing 3 feet above flood elevation.
Surface waters (25 feet) Storm water Systems (25 feet)
BioInfiltration Stormwater Systems (50 feet +)
Spray Irrigation/ Septage Disposal (100 feet+)
Sinkholes and Closed Depressions (100 feet +)
Farm silos / manure storage (200 feet) Septic Systems (100 feet)
Septic Tanks/Holding Tanks (50 feet)
Chemical Storage/Preparation Area (300 feet)
Well Construction
1. Prefer the use of steel casing that extends at least 15 feet to 20 feet into firm bedrock or 60 feet below ground, whichever is greater.
2. Casing should be of  adequate wall thickness to deal with corrosion and stress – 19lb casing.
3. The base of the casing should contain a driveshoe on the bottom of the casing and casing centralized in the borehole.
4. Wells drilled by a licensed well driller using only potable water as the drilling fluid.
5. Casing should be double circumferential welded or threaded casing
6. Well caps should be sanitary well caps that are properly vented.
7. Annular space should have a grout layer that is at least 1.5 inches thick.
8. Pitless adapters should be used over well pits.
Well Testing (Yield and Quality)
After the well is drilled, the well should be developed using surging, air-lift, or pumping the well.  This is done to clean out the well cuttings and improve yield.  In some cases, this needs to be done to improve the efficiency of the borehole. If the well yield is low, some well drillers will hydrofrac the well. If you are going to hydrofrac a water well, we recommend zone hydraulic fracturing to isolate the deeper potential water-bearing zones.   After the well development has been completed, a shock wellbore disinfection should be conducted.  The well should be allowed to fully recover and a minimum 2-hour yield test is recommend.  After the yield testing, the well should be shock disinfected.  For information on shock disinfection – we recommend visiting Water-Research Center.   The well yield data should include the static water level (water level before pumping), maximum dynamic water level (maximum depth to water during pumping), pumping rate, and length of the pumping test.  This data should be included on the well log and the specific capacity of the well should be reported.  The specific capacity is the rate of yield or gallons per minute per foot of drawdown.  The drawdown is the difference between the static and dynamic water level measurement. 
Before the end of the yield testing, it is recommended that a general water quality analysis of the well be conducted.  This testing should include bacterial quality, general water quality, and specific parameters that are known problems for your region.  Do not rely on a free water analysis or a basic water quality screening down by the well driller.  This should be either information or certified testing conducted by a laboratory.  For information on this type of testing, please contact the Water-Research Center.   The center offers a number of water testing options, screening tests, and special packages for city water users and private well and spring systems.  The initial water quality testing data should be reviewed and evaluated.  This evaluation should include the need for any further action to improve the well security, continue with well development, or add equipment to improve well water quality.  In some cases, water treatment systems are installed as an additional barrier or layer of protection.  In many cases, the only type of additional treatment that is needed is a whole-house particle filter and a sanitary well cap.  For information on Do-it-Yourself Water Treatment Systems.
Well and System Maintenance
At a minimum, the well water system should go through an annual inspection.  This inspection could be associated with the annual water quality test or inspection of any water treatment systems.  During this evaluation, the aesthetic quality of the water should be evaluated and some basic field water quality screening should be conducted.   For the field water screening, it is possible this can be done using a number of low-cost meters or an informational water quality screening test.  Not sure of the nature of the Problem - Check out the Water Quality Well Guide or Some Case Studies.
Annual Water Testing
Depending on the results of the initial evaluation, the results should be evaluated to determine what are the water quality parameters that should be monitored to help track the general water quality of the well.  If a water treatment system was installed, the annual water quality evaluation should include the performance of the water treatment system.  If you need help with determining what you need, WE can Help !    Our Mail Order Program - Get the Water Testing Results and a Review of the Findings with NO Sales Pitch. Why ? Because we do not Sell Water Treatment !
If you are in Pennsylvania, please check out the The Keystone Clean Water Team can provide guidance on the selection of water quality parameters, review water quality data, and make recommendations on the water quality parameters.  If you are interested, you may want to obtain a copy of our Educational Booklet and Brochure.
Arsenic, bacteria, lead, trace metals, benzene, toluene, chloride, sulfate, phosphate, sodium, potassium, lead, aluminum, chromium, manganese, iron, cancer causing agents, water quality case studies

1 comment:

  1. I had never even considered testing my well water before. We just moved into this new home with a well in the backyard. We haven't drunk out of it yet though because we are hooked up to the cities water system as well. It would be neat to get the well inspected though so we could know whether or not it would be safe to drink.