Water Quality Testing
Two simple packages—focused on the tests most commonly requested for real estate transactions and private water supplies. Lab analysis is performed through Penn State’s Agricultural Analytical Services Laboratory (accredited for drinking water analysis).
Water testing is available as a standalone service or paired with a home inspection.
Why test your water?
Even when water looks and tastes fine, issues can exist that aren’t obvious. The Environmental Protection Agency (EPA) recommends residential water supplies be tested routinely (including bacteria and nitrates among other factors), and testing frequency may increase based on household risk factors or recent plumbing/well work.
Packages
Package #1: Bacteria
Includes laboratory testing for:
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Total coliform bacteria + E. coli (standard indicators for microbial contamination)
Best for: routine screening, private wells, and many transaction scenarios where bacterial safety is the primary concern.
Package #2: Bacteria + Nitrates + Lead/Copper
Includes laboratory testing for:
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Total coliform + E. coli
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Nitrate-nitrogen
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Lead (first-draw) + Copper (first-draw)
Best for: real estate transactions and buyers who want a broader health-focused screen, especially where nitrate risk or plumbing corrosion concerns are possible.
How the process works
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Schedule + confirm scope (which package, property type, and water source)
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Collect samples correctly using lab-approved bottles and procedures
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Ship to the lab (bacteria samples must arrive within required hold times)
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Receive lab results and a clear explanation of what the numbers mean and what to do next (if anything)
Turnaround Time
Penn State notes results are generally completed within 10–14 business days after the lab receives the sample, depending on the test(s) requested.
Additional testing (available by request)
If a client (or a specific lender/transaction) requires additional analytes beyond the two standard packages, they can request expanded testing.These include:
General water chemistry / aesthetics / corrosivity
pH
Hardness
Corrosivity/Corrosivity Index
Sulfate/Sulfate-Sulfur
Flouride
Total Dissolved Solids (TDS)
Alkalinity
Chloride
Sodium
Total Suspended Solids (TSS)
Metals / trace elements
Iron
Aluminum
Barium
Chromium
Zinc
Manganese
Arsenic
Cadmium
Nickel
Availability depends on lab options and sample requirements.
Limitations and Notes
❌ Water testing reflects conditions at the time of sampling.
❌ Results depend heavily on proper sampling technique, shipping time, and correct bottle usage.
❌ If results indicate a concern, next steps may include confirmation sampling, plumbing evaluation, treatment options, or consultation with an appropriate specialist.
FAQ
Do you test city water too?
Yes—testing can be performed for private or public supplies when requested, but package selection should match the concern (bacteria vs nitrate vs plumbing metals). Typically, lenders do not require public water to be tested.
Is “bacteria” the same as E. coli?
E. coli is a specific indicator organism; many labs report total coliform and E. coli together. Penn State includes both in their standard drinking water package.
How do you test lead/copper correctly?
Lead testing typically requires a first-draw sample after water sits unused for several hours
What do lenders require?
Requirements vary by loan type and lender. “Package 2” is designed to match a common transaction screen; confirm exact requirements with the lender or agent.