Free well water testing: which states and counties pay for your test

The short answer: yes, in some places. On official pages we opened on November 2, 2026, Iowa's DNR says its Private Well Grants program "provides free water testing to all private well owners and users," though the state lab says that depends on whether your county participates. Delaware samples private wells for PFAS, bacteria, nitrate and nine other measures with "no cost for sampling and analysis." The Kansas Geological Survey does one-time tests for up to 100 wells a year at no charge. Elsewhere, free means one area, one contaminant or one disaster: southeast Minnesota, Oregon's Lower Umatilla Basin, parts of Washington's Yakima Valley and Benton County, a PFAS pilot in New York and Wisconsin's PFAS well-testing program (WisPPWT), and 11 programs funded or regulated by California's Water Boards in parts of 19 counties.

If your state has nothing like this, the realistic path is a county health department, a low-cost Extension clinic or a certified lab, all covered below. Every program here links to the agency's own page. We left out any program we could not open on an official site today.

Free well testing programs we verified, state by state

This table lists programs where an official page says the testing itself is free for at least some private well users. "Who qualifies" uses each agency's wording as closely as a table allows. Read the state section before applying, because most of these have limits.

Maine (help for low-income households), Texas (some no-fee screenings) and recent flood programs are covered below.

What "free" actually means on these pages

The word covers five different deals. Knowing which one you are looking at saves a wasted application.

The screening row matters most. New Mexico's Environment Department says its free field-office test "is intended as an initial screening and does not replace more comprehensive testing by a certified laboratory." A rebate, lender or buyer will usually want a certified result, which is why our kits vs. lab guide treats the two as different tools.

Midwest and Plains

Iowa: the closest thing to universal free testing

Iowa's Department of Natural Resources says the Private Well Grants program, run with the Iowa Department of Health and Human Services, "provides free water testing to all private well owners and users." Its list of free analytes is bacteria (E. coli and coliform) and nitrate annually, arsenic and manganese every three years, and PFAS, which "requires pre-approval from the DNR." To start, the page says to contact your local county environmental health office "and ask to participate in the Grants to Counties Well Testing Program."

The State Hygienic Laboratory's page is a little narrower: "If you live in a county that participates in the Grants-to-Counties program, you may have your well water tested for total coliform bacteria and nitrate at no cost." So ask your county sanitarian whether the county participates before you buy a kit.

Kansas: a free test, collected for you

The Kansas Geological Survey says private well owners "can sign up to get their domestic, lawn and garden, irrigation, or stock wells tested at no charge." A KGS representative collects the sample. Funding limits it: one-time sampling is "first come, first served basis, up to 100 wells per year," and a long-term study that resamples every two years is capped at 300 wells. The test list on the page covers 22 items, among them nitrate, arsenic, lead, manganese, uranium, fluoride and hardness. Bacteria is not on that list, so plan a separate coliform test.

Minnesota: free in the southeast, clinics elsewhere

The Minnesota Department of Health says "free, local, certified testing is available for private well users in SE MN while supplies last." The kit covers nitrate plus arsenic, total coliform and E. coli, lead and manganese, and is mailed to you. You may qualify "whether you are a private well owner or a renter relying on a private well" in Dodge, Fillmore, Goodhue, Houston, Mower, Olmsted, Wabasha or Winona county. Expect a wait: the page says it "can take 2 - 10 weeks to receive a kit," and the lab processes up to 75 kits a week.

Local Soil and Water Conservation Districts and the Minnesota Department of Agriculture also held free nitrate clinics at southeast county fairs in summer 2026, with "on-the-spot results and personalized guidance at no cost." Elsewhere, county fees can be modest: Anoka County charges $17 for a coliform or nitrate test. See our Minnesota page for labs.

Wisconsin: free PFAS kits for eligible wells

Wisconsin's DNR "will provide eligible private well owners and users with a home sampling kit at no cost to the applicant." The kit arrives with a prepaid shipping label, and the State Laboratory of Hygiene analyzes the sample. WisPPWT is "primarily for private well owners and users in communities that are not planning to participate in Community Grants Sampling Programs," so the first step is a questionnaire that sorts wells into "conditionally eligible" or "not eligible." The DNR puts the time from application to results at about three to four months. The free test is PFAS only. For bacteria, nitrate and the rest, see our Wisconsin page; for what a PFAS result means, the PFAS explainer.

Nebraska: Natural Resources Districts

Nebraska's local Natural Resources Districts run some of the simplest free tests we found. A 2026 article reprinted on the Upper Big Blue NRD's site says the district "offers assistance to private well owners in testing their water," and its photo caption says the district "offers private well owners free testing for nitrates and bacteria." Nitrate results take "a half hour or so"; bacteria needs a special bottle from the York office and 24 hours. The Lower Platte South NRD held a "Test Your Well Week" from March 30 to April 3, 2026, describing it as a nitrate screening "provided free of charge" for private domestic wells inside its boundaries. If you live in Nebraska, your NRD is the first call.

Illinois: free help, paid tests

The Illinois Department of Public Health says "most local health departments can help test for bacteria and nitrate" and admits that "testing for contaminants can be expensive." What it offers free is interpretation: IDPH "can help interpret test results and provide appropriate recommendations for free."

Northeast and Mid-Atlantic

Delaware: the broadest free panel we found

Delaware's environment department (DNREC), working with the Department of Health and Social Services, is "sampling private drinking water wells in Delaware" for PFAS, nitrate, nitrite, iron, fluoride, alkalinity, pH, chloride, sulfate, sodium, hardness, E. coli and total coliform, and says "there is no cost for sampling and analysis." You submit a request online with your well permit number, which a state lookup can find by address. If PFAS or other standard measures come back above EPA's PFAS limits (MCLs), which Delaware law also uses, the agencies "implement a response plan" that may include mitigation and treatment. The page was modified October 20, 2026.

New York: free PFAS tests in six counties

New York's pilot "offers limited, free private well testing and rebates for PFAS water treatment in six counties": Dutchess, Orange, Putnam, Suffolk, Ulster and Westchester. Renters can apply for the test if they include a Property Owner Acknowledgment form; "only property owners can apply for a rebate." Rebates require PFOA or PFOS at or above 10 ng/L, the state's standard for public water. Applications open county by county, and the state "may pause as we carefully track available funds for rebates." A contractor schedules the sampling, and results come about two to six weeks after. Our New York page has the state's general testing schedule.

Maryland (Montgomery County): targeted testing near contamination

In June 2026, Montgomery County reported high PFAS levels in a small stream near Great Seneca Highway and Key West Avenue, next to the former Public Safety Training Academy site. Its PFAS page says it is "contacting well owners within one mile of the highest sample results and offering to test their wells," and a county bulletin calls this "free testing of well water." It is not an open program, but the lesson travels: if an agency finds contamination near you, ask whether nearby wells will be tested at public cost.

Maine: help for low-income households

Maine CDC provides "free help to private well owners who have questions about their wells, water sampling, and water treatment," and low-income residents can fill out a form "to receive more information about testing or a test kit." The page does not promise a free kit; our Maine page lists state lab prices.

New Jersey: reimbursed only if PFAS is above Spill Fund criteria

New Jersey's health department fact sheet on PFAS in private wells (updated July 2025) recommends a certified laboratory and says "the cost of testing can be prohibitive for many private well owners." It adds that if PFAS is detected above the Spill Fund's financial relief criteria, "NJ Spill Fund will reimburse the cost of testing." Those criteria are 4 ppt for PFOS and PFOA, 10 ppt each for PFNA, PFHxS and GenX, and 2,000 ppt for PFBS. You pay first.

West and Southwest

California: 11 programs, mostly in the Central Valley and Central Coast

California's State Water Board says "there are currently 11 domestic well programs funded or regulated by the State Water Board and/or Regional Water Board." Its Well Testing Program Directory (last updated June 2026) lists them by county, along with whether each offers replacement water. Some cover a whole county, others only a groundwater subbasin, so the Board says to "check the program area column" for your location.

California also changed the rules for landlords. Under AB 2454 (2024), now Health and Safety Code section 116688, owners of domestic wells serving rental property inside a free program's boundary must "test the well water using the free testing program" and share the results with tenants within 10 days. The Attorney General's March 12, 2026 advisory adds that the duty applies when "the program has capacity." If results exceed safe drinking water standards and the program offers free replacement water, the landlord must provide safe drinking water. Landlords may not raise rent or fees to cover any of it.

Oregon: free nitrate tests in the Lower Umatilla Basin

The Lower Umatilla Basin Groundwater Management Area covers northern Morrow County and northwestern Umatilla County. The Oregon Health Authority says "anyone who lives in the LUBGWMA can get a free nitrate laboratory analysis" of their well water. It urges testing between July and September because "limited nitrate data" it has collected there since March 2023 show nitrate levels rise in summer. Households with a lab result above 10 mg/L can get free water delivery, and for results above 10 but below 25 mg/L, OHA will pay for installation and maintenance of one certified in-home reverse-osmosis system. (Oregon calls 10 mg/L the "health action level." It matches the federal limit for public water systems, which does not legally apply to private wells.) If an infant or a pregnant person drinks the water, ask a doctor or the health department what to do with your result. Our nitrate guide explains the numbers.

Washington: one free zone

Washington's Department of Health says that if you live "within a specific boundary of the Lower Yakima Valley or Western Benton County, you may qualify for free nitrate and coliform Testing." The linked form mentions only a nitrate sample and a well site assessment, and asks whether you rent (see our Washington page).

New Mexico: free screening at field offices statewide

On August 13, 2026, New Mexico's Environment Department said residents on private wells "can bring water samples to NMED field offices statewide, where staff will screen samples for nitrate, iron and fluoride." The department puts the cost of similar commercial tests at $100 to $125. NMED also runs water fairs with free testing for more measures, metals and PFAS testing near the Hermits Peak-Calf Canyon burn scar, and PFAS testing with free filtration for affected wells in Santa Fe and Curry counties.

Texas: $15 screenings, sometimes free

The Texas Well Owner Network, run by Texas A&M AgriLife Extension, holds screenings for total coliform, E. coli, nitrate-nitrogen and salinity. An October 2025 event in Walker and Grimes counties charged "a $15 charge per sample," and residents could submit several. A June 2026 South Texas series charged $15 per sample in the Robstown, Sinton and Refugio areas, "while the other areas offering testing will not have a fee," and added arsenic.

Low-cost and subsidized testing

Where nothing is free, Extension clinics offer broad panels at set prices. Beyond the Texas and Anoka prices above, two 2026 clinics show the model. Both are now over; clinics like these are seasonal, so ask your county Extension office when the next one runs.

For a full picture of what tests cost at state and university labs, see our well water testing cost guide.

Free testing after floods and disasters

Flood-related free kits are common, and they end. Three recent examples:

• Vermont. The Health Department's flood page (updated October 29, 2026) says "the time period for ordering free flood-related drinking water test kits has ended." Kits can be bought, and anyone who got a free initial kit can get a free retest after treating the well.
• North Carolina, Hurricane Helene. In October 2024, participating local health departments in western North Carolina handed out "free well disinfection and well water collection kits." EPA brought mobile labs that tested samples for total coliform and E. coli, and its acting regional administrator said "testing is free."
• Southwest Virginia. In February 2025 the Virginia Department of Health offered free test kits for flooded residential wells in the LENOWISCO and Cumberland Plateau health districts, for total coliform and E. coli. The well had to be disinfected and flushed first, and VDH noted the results "will only indicate if the well is contaminated."

The common thread, in North Carolina's words: "Disinfect flooded or damaged wells before collecting a sample for testing." After a disaster, ask the county health department about free kits before you pay a lab. Our how-to-test guide covers when to retest and how to collect each sample.

"Free" in-home tests from treatment sellers

Many "free water test" offers come from companies that sell treatment equipment. Penn State Extension says that "although many water softening companies offer free hardness testing, it's best to have a third-party evaluation. An independent lab test is not expensive and will protect you from being oversold."

The Minnesota Department of Health's fact sheet on water treatment scams (August 2018) describes the pattern. A salesperson may "conduct a series of water quality 'tests' that the salesperson claims indicate the presence of contamination, when in fact they may simply indicate the presence of naturally occurring minerals in the water." MDH's advice: if a company says it is working with an agency, "ask for the name of a contact person at that agency and follow up," and get estimates from other companies before buying. Treat a test that comes with a sales visit as a starting point, not the result you act on.

If your state has no free program

This is the order we would work through:

1. Call the county or city health department. EPA lists "your local health department, which may provide private well testing for free" among the places to get a well tested. Ohio EPA says your local health department "may have a program for homeowners who want to have their well water tested." Ask whether they test, the cost, and any free program this year.
2. Ask your Natural Resources District, Soil and Water Conservation District or Extension office. Most of the clinics above came from these offices.
3. Choose the tests before you pay. Bacteria and nitrate are the usual starting point, then what your geology and land use call for. Our which-tests checklist sorts that out in a few minutes.
4. Use a state-certified lab. Search our lab finder or browse state pages. If the nearest lab is far, see our testing deserts research on time-limited bacteria tests.

Which program fits your situation

Worked example (row B). Say you rent a house with a well in Orange County, New York, and a neighbor mentions PFAS. You can apply for the state pilot's free PFAS test if Orange County is accepting applications, attaching a Property Owner Acknowledgment form from your landlord. If PFOA or PFOS is 10 ng/L or more, only the owner can claim the treatment rebate, so share the letter early. Bacteria and nitrate still need a separate test.

Questions people ask