VA, FHA and USDA well water test requirements, quoted from the current handbooks

VA, FHA and USDA loans all make a private well prove its water is safe, but they don't ask in the same words, on the same clock, or for every home. The VA counts a test as valid for 90 days from the date the local health authority certifies it. FHA and USDA both allow a report up to 180 days old. USDA asks for a water test on every private well. FHA lists situations that require one, "but not limited to" those. VA's handbook sets the standard and the sampling rules but contains no list of required contaminants. Below, each rule is quoted from the handbook in force on November 3, 2026, with section and revision date, plus the state and lender rules on top.

One thing all three share: they borrow a public-water yardstick. EPA says the quality of water from private domestic wells is "not regulated by the Federal Government under the Safe Drinking Water Act nor by most state governments and laws." EPA's drinking water rules in 40 CFR Part 141 "apply to each public water system." So when a loan handbook says "EPA standards," it means limits written for public water systems, applied to your well as a loan condition. They don't bind the well itself.

VA, FHA and USDA well requirements side by side

Each cell paraphrases or quotes the section in the first row. A silent handbook doesn't mean a silent lender.

For the hardware side of a home-sale check (casing, cap, septic setbacks, pump), see our well inspection guide, which keeps a short FHA and VA summary. This page goes deeper on the loan rules.

VA loans: what Chapter 12 actually says

VA's rules sit in the Lender's Handbook, VA Pamphlet 26-7, Chapter 12. The KnowVA version is titled "Effective after May 1, 2026" and shows "Updated Aug 12, 2026," but Topic 16, "Individual Water Supply," carries a change date of March 11, 2019.

Topic 15 sets the baseline. The property must have "a continuous supply of safe and potable water for drinking, bathing, showering and sanitary uses," hot water, sanitary facilities and a safe method of sewage disposal. It also puts the appraiser on the hook: appraisers "must ensure that accurate water supply information is reported in the appraisal," and the Staff Appraisal Reviewer (SAR) "must condition the NOV appropriately." That is how a water condition gets onto a VA loan's Notice of Value.

Topic 16 then sets five working rules:

• Standard. Water quality "must meet the requirements of the health authority having jurisdiction." If the local authority has no specific requirements, "the guidelines established by the Environmental Protection Agency (EPA) will apply."
• Sampler. "All testing must be performed by a disinterested third party. This includes collecting and transporting the water sample." "At no time will the Veteran or other interested party collect and/or transport the sample."
• Unusual sources and filters. The Veteran signs an acknowledgment when water comes from dug wells, cisterns or hauled-water tanks, a mechanical chlorinator, springs, lakes, rivers, sand-point or artesian wells, or rainwater catchment. With a filtration system, the Veteran acknowledges that the water "must be continuously treated" and the system maintained.
• Distances. The appraiser "must be familiar with" minimum distances between wells and pollution sources but "is not required to sketch or note" them.
• Validity. "Water quality test results are valid for 90 days from the date certified by the local health authority unless the local authority indicates otherwise."

Topic 16 contains no contaminant list and no flow number, and two other places came up empty on November 3, 2026. Chapter 12, Topic 1 points to a VA "Local Requirements" page for location-specific rules, but that page (last updated July 11, 2025) lists only wood-destroying insect requirements. And none of the circulars listed on VA's Circulars page for 2025 and 2026 (through 26-26-5, October 27, 2026) deals with water testing. In practice, the contaminant list comes from your state or your lender.

FHA loans: the 2026 changes the older guides miss

FHA's well rules are in HUD Handbook 4000.1, section II.A.3.a.ii(N). The current text is Update 18, issued August 12, 2026, with pages marked "Last Revised: 8/12/2026." HUD's transmittal lists the water-test paragraphs under "Refined language for valid water test for consistency," and says changes not tied to a Mortgagee Letter "may be implemented immediately, but must be implemented no later than November 10, 2026."

When FHA requires a test

The handbook says: "A well water test is required for, but not limited to, Properties:" that are newly constructed; where an appraiser has reported deficiencies with a well or the well water; where water is reported or known to be unsafe; or "located in close proximity to dumps, landfills, industrial sites, farms (pesticides) or other sites that could contain hazardous wastes." The words "but not limited to" leave room for your lender to ask for a test on any well, and the Minnesota Department of Health notes that many lenders may require one anyway.

The appraiser section adds sharper triggers. Under II.D, the FHA appraiser must note readily observable well deficiencies and "require test or inspection" if any of the following apply:

The same section requires a pressure tank of at least 42 gallons (or a device that delivers as much between pump cycles), and says the appraiser must note a deficiency if the water source includes a mechanical chlorinator or comes from springs, lakes, rivers, sand-point wells or artesian wells.

Who samples, which lab, and the flow line

The sampling rule matches VA's: "All testing must be performed by a disinterested third party," including collection and transport, by the local health authority, a commercial testing laboratory, a licensed sanitary engineer, or another party the health authority accepts. Under Required Documentation, the lender "must obtain a valid water test from the local health authority or a lab qualified to conduct water testing in the jurisdictional state or locality," and the report "may not be more than 180 Days old from the Disbursement Date." For quantity, the existing-construction table reads: "Existing wells must deliver a continuous water flow at a minimum of three gallons per minute." New construction must deliver "five gallons per minute over at least a four-hour period."

FHA's septic distances, and the 2026 waiver of them, have their own section below: FHA, VA and USDA well and septic distance requirements.

What is still only a draft

After a May 29, 2026 Request for Information on its Minimum Property Requirements (FR-6609-N-01), FHA posted a draft on its Single Family Drafting Table on September 22, 2026 (FHA INFO 2026-22) and invited feedback through November 6, 2026. The draft would remove "minimum distances between wells and sources of pollution for existing properties"; its existing-construction well table no longer shows the three-gallons-per-minute line, and its individual-well trigger list drops "but not limited to." FHA says the draft "cannot be used in connection with any FHA-insured mortgage until finalized" and that existing policies "remain in effect until amended." If your closing is months away, ask your lender whether anything has been finalized.

If the water needs treatment

FHA accepts water that is safe only with treatment, but the lender must ensure an individual residential water purification system, "a service contract for the ongoing maintenance of the system, a plan approved by the local or state health authority, and an escrow account." The plan must require a water analysis from the health authority "no less frequently than annually," and the lender must give the borrower a written notice that identifies "specific contaminants in the water supply serving the Property."

USDA loans: a test for every private well

USDA's Guaranteed Loan Program puts its water rules in HB-1-3555, Chapter 12, section 12.6, "Water and Wastewater Disposal Systems [7 CFR 3555.201]." In the consolidated handbook on USDA's guidance portal, those pages are marked "Revised (05-05-25) PN 640." The regulation behind it, 7 CFR 3555.201, says "the Agency may require inspections" on privately owned water systems.

For an individual privately owned well, the handbook says "Water quality tests are required as follows":

• "The water quality of the well must meet the requirements of the state or local authority. If the state or local authority does not have specific requirements, the maximum contaminant levels established by the Environmental Protection Agency (EPA) will apply."
• "The local health authority or a state certified laboratory must perform a water quality analysis."
• "The water analysis report must be no greater than 180 days old at loan closing." If USDA "is aware of any recent environmental impacts that may render the previous analysis invalid (for example chemical spills, natural disasters, etc.) a new report may be required."

Two more lines matter for rural lots. The well "must be measured to establish the distance from the septic system," and that distance "must meet the SF Handbook (HUD Handbook 4000.1) or be found acceptable by the Local and/or State Health Authority." And the well "should be located on the subject property site"; if it sits on a neighbor's land, the lender needs evidence of water rights and a recorded maintenance agreement. Because USDA points to HUD's handbook for distances, ask your lender whether it applies FHA's July 2026 waiver to a USDA file; the USDA text we read doesn't say.

USDA's section 12.6 says who must perform the analysis, a health authority or a state-certified lab, but not who may draw the sample. Your lender may still insist on a third-party sampler, so ask before you fill a bottle.

FHA, VA and USDA well and septic distance requirements

The three programs treat the distance between a well and the septic system differently. VA's Topic 16 requires the appraiser to be familiar with minimum distances but does not require the appraiser to sketch or note them (VA section above). USDA has the distance measured and requires it to meet HUD's handbook or be found acceptable by the local or state health authority (USDA section above). FHA is the program with a table.

Update 18 still prints FHA's existing-construction table: 10 feet to a property line, 50 feet to a septic tank, 100 feet to a drain field (75 if the local authority allows). But FHA INFO 2026-17, dated July 27, 2026, announced "a broad waiver of the well distance requirements" for existing construction. It applies only when "the property meets the distance requirements of the local jurisdiction" and "acceptable water testing results are documented by the mortgagee." HUD granted the waiver on July 24, 2026; it also covers HECM reverse mortgages, sets no end date, and is listed among HUD's active Single Family waivers. It does not cover new construction, which keeps the regulation's own table:

So for an existing home closer to a septic system than HUD's table allows, an acceptable water test is one of the waiver's two conditions. A shared well has its own FHA distance in the required well-sharing agreement (see shared wells), and FHA's September 2026 draft would drop the existing-property distances altogether (see the draft section above).

The waiver leans on local distances, and those come from state and county codes. Each state's minimums to the septic tank, drainfield and seepage pit, with the rule section, are in our well and septic setback distances by state; ask the county health department whether a local rule also applies.

The test clock: 90 days vs. 180 days

The three programs start and stop the clock at different points. VA counts from the date the local health authority certifies the result. FHA measures the report's age at the disbursement date. USDA measures it at loan closing. Here is how that plays out:

The middle row is the VA trap: a June test, a closing that slips into September, a lapsed result. A seller's test from another buyer's FHA or USDA loan can be inside 180 days but outside VA's 90. For FHA or VA, a sample the seller drew himself won't count at all. VA's "unless the local authority indicates otherwise" can change the window, so ask the health department or your lender.

What the lab will test for

None of the three handbook sections we read lists required contaminants. They point to the local or state standard and fall back on EPA's public-water limits. That leaves the actual list to the state and the lender:

• The Minnesota Department of Health says the state doesn't require a test at transfer, but "many lending institutions may require testing, typically for coliform bacteria and nitrate, as a condition for approving a loan." In Dakota County, a local ordinance requires a test at transfer.
• New Jersey's Private Well Testing Act requires testing raw (untreated) well water "whenever a property is transferred by contract of sale," for total coliform and fecal or E. coli bacteria, VOCs, nitrate, lead, arsenic, synthetic organic chemicals, PFAS (PFNA, PFOA, PFOS), iron, manganese and pH, plus mercury in nine counties and gross alpha and uranium in twelve.

Many lenders ask for at least coliform bacteria and nitrate; that is the pair Minnesota's health department says lenders there typically require. Lead is on New Jersey's list. Near farms, gas drilling or industry, test for local concerns even if the loan doesn't ask. Our which-tests tool builds a list from your situation, and when the report comes back, how to read a well water test report explains each line. If E. coli shows up, read E. coli in well water before you do anything else.

Three layers: federal minimum, state rule, lender overlay

The handbook is the floor. Two layers can sit above it, and the strictest decides what you need.

1. The federal program rule, the same in every state.
2. State and local rules. All three programs defer to the health authority with jurisdiction, so a state that requires a broader test at sale, as New Jersey does, effectively sets the list. FHA's own table says local distance requirements "prevail if greater."
3. The lender's overlay. FHA's "required for, but not limited to" wording and VA's lack of a contaminant list leave lenders room to add conditions.

Ask your lender these questions early, in writing:

• Which contaminants does your condition list include, and what result passes?
• Who may collect the sample, and do you need the lab's chain-of-custody form?
• How old may the report be at closing, and from which date do you count?
• Do you need a flow test, and what number passes?
• For FHA: do you apply the July 27, 2026 distance waiver? For USDA: do you apply it too?

For your state's own testing rules and certified labs, start at our state pages; Minnesota buyers can go straight to nitrate testing in Minnesota.

Shared wells

All three programs accept a well shared with neighbors, under conditions. FHA's are the most detailed.

Check the paperwork first. If no recorded agreement exists, getting every owner (and, for FHA, any lender with a mortgage on a connected home) to sign one takes time, so start the week your offer is accepted.

If the well test fails before closing

A failed result doesn't automatically end the loan. The next step depends on what failed and which program you use.

Who pays for the test, and what it costs

None of the handbook sections we read says whether the buyer or the seller pays for the test or for any fix; the handbooks set the condition, not the bill. VA adds a limit: under 38 CFR 36.4313, the Veteran may be charged only fees the rule permits, and a water test is on neither VA's itemized list in that section nor its State Fees and Charges Deviations List (2/2026). VA buyers: ask the lender who may pay. If a seller offers a recent result, check three things before relying on it: who collected the sample, the certification date, and whether the analyte list matches your lender's condition.

Price follows the list. New Jersey's health department put the average cost of its long state-required sale test at $1,250 (2023 sheet). Our well water testing cost guide collects official state lab prices by test.

Getting the loan test done on time

1. Get the lender's condition in writing as soon as the appraisal is ordered: analytes, sampler, age limit.
2. Book a sampler, not just a lab. For FHA and VA, a disinterested third party must draw and deliver the sample; ask the lab whether it sends one. Use our finder to find a state-certified lab near the property, and check that it is certified for each analyte on your list.
3. Time it, and leave room for a retest. Mind the 90- or 180-day clock; if bacteria show up, disinfection and a retest add time.
4. Keep the report as your baseline; how often to test well water covers what comes next.

We last checked these rules on November 3, 2026, against the FHA notices and Mortgagee Letters published through November 3, 2026 and the USDA handbook pages as published in July 2026; anything newer may change them. FHA's property rules are being rewritten, so treat this page as the federal floor and ask your lender which version it follows.

Questions people ask