Coliform Bacteria Water Testing Labs in Pennsylvania (120 state-certified labs)
Labs on Pennsylvania's official certification list that test drinking water for coliform bacteria, with the ones that take homeowner samples first.
Labs certified for coliform bacteria120
120 named for coliform bacteria itself on the list.
Marked as taking public samples0
Per the state list or a state web page. Call to confirm.
Out-of-state labs17
Located outside Pennsylvania but on its list.
People on private wells (2015)3,470,761
USGS estimate for Pennsylvania.
How many labs test for coliform bacteria in Pennsylvania
120 labs on Pennsylvania's official drinking-water lab list are certified to test for coliform bacteria. All 120 are named for coliform bacteria on the list. The Pennsylvania list does not say which labs take samples from homeowners, so call a lab before you send one. 17 are located outside Pennsylvania.
The list is published by the Pennsylvania DEP - Laboratory Accreditation Program. List version on file: STALE - report dated 6/11/2024. Fetched 2026-10-29 (UTC).
Old list. This list is from PA DEP's bulk drinking-water reports printed June 11, 2024 (chemistry and microbiology; the microbiology file is named 06-13-2024). PA DEP's own private-well water-testing page still links these two June 2024 reports (checked Nov 14, 2026); its live lab search did not respond to us on Oct 29 or Nov 14, 2026. Labs may have been added, dropped or changed since then.
Pennsylvania labs certified for coliform bacteria
| Lab | Location | Bacteria certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| A E Kirby Memorial Health Center | Wilkes-Barre, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| ABE Laboratories LLC | Bath, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| AG Environmental RSC LLC | Ferndale, NY | Named on the official list | Public samples: ask the lab | Not on the list |
| Agricultural Analytical Services Laboratory | University Park, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Allegheny County Health Department | Pittsburgh, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| ALS Environmental - Middletown | Middletown, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Analytical Laboratories, Inc | Telford, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Bethlehem Water Lab | Bethlehem, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Blue Triton Brands, Inc. | Breinigsville, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Brandywine Science Center | Kennett Square, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Cardan Laboratories Inc | Northern Cambria, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Cattaraugus County Department of Health Laboratory | Olean, NY | Named on the official list | Public samples: ask the lab | Not on the list |
| Chemserve | Milford, NH | Named on the official list | Public samples: ask the lab | Not on the list |
| Chemstream Lab Services | Homer City, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Continental Water Laboratory | Sacramento, CA | Named on the official list | Public samples: ask the lab | Not on the list |
| Criterion Laboratories Inc | Bensalem, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| CWM Environmental | Kittanning, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| CWM Environmental - Pottsville | Pottsville, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Dream Pools and Spas Inc | Pittsburgh, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Eagle Industrial Hygiene Associates Inc | Willow Grove, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| EMSL Analytical Inc | Cinnaminson, NJ | Named on the official list | Public samples: ask the lab | Not on the list |
| Enthalpy Analytical, LLC | Richmond, VA | Named on the official list | Public samples: ask the lab | Not on the list |
| Environmental Laboratory Services Inc | New Castle, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Environmental Service Laboratories Inc | Indiana, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Environmental Service Laboratories, Inc - Northern Division | Montoursville, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Environmental Service Laboratories, Inc - Northwest Division | Sharpsville, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Environmental Service Laboratory Inc - Southern Division | Van Voorhis, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Eurofins Eaton Analytical, LLC | South Bend, IN | Named on the official list | Public samples: ask the lab | Not on the list |
| Eurofins Eaton Analytical- Pomona | Pomona, CA | Named on the official list | Public samples: ask the lab | Not on the list |
| Eurofins Environment Testing Philadelphia LLC | Horsham, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Franklin Analytical, Inc | Chambersburg, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Free-Col Laboratory | Erie, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| G & C Coal Analysis Lab Inc | Summerville, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Garden State Laboratories Inc | Hillside, NJ | Named on the official list | Public samples: ask the lab | Not on the list |
| Geochemical Testing | Somerset, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| H & H Water Controls Inc | Carmichaels, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| H.O. Thompson Testing Lab | Parkesburg, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| HawkMtn Labs Inc | Hazle Township, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Kevco Services, Inc | Butler, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Laboratory, Analytical and Biological Services, Inc | New Oxford, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| LEAP Testing Service | Sayre, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| M. J. Reider Associates Inc | Reading, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| MAWC George Sweeney Plant | Saltsburg, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| McAndrew Laboratory, Inc. | Orchard Park, NY | Named on the official list | Public samples: ask the lab | Not on the list |
| Microbac Laboratories Inc New York Division | Cortland, NY | Named on the official list | Public samples: ask the lab | Not on the list |
| Microbac Laboratories, Inc. - Pittston | Pittston, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Microbac Laboratories, Inc. Pittsburgh Division | Warrendale, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| National Testing Laboratories LTD | Ypsilanti, MI | Named on the official list | Public samples: ask the lab | Not on the list |
| Niagara Bottling, LLC | Howard, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Northeast Laboratory Services | Winslow, ME | Named on the official list | Public samples: ask the lab | Not on the list |
| Nova Biologicals, Inc. | Conroe, TX | Named on the official list | Public samples: ask the lab | Not on the list |
| Owl Hill Laboratories LLC | Lititz, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PA American Water Brownsville Lab | Brownsville, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PA DEP Bureau of Laboratories | Harrisburg, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services LLC - Williamsport, PA | Williamsport, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services LLC Ormond Beach FL | Ormond Beach, FL | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services, LLC - Altoona, PA | Altoona, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services, LLC - Dubois | Dubois, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services, LLC - Erie, PA | Erie, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services, LLC - Ewing | Ewing, NJ | Named on the official list | Public samples: ask the lab | Not on the list |
| Pace Analytical Services, LLC - Wysox | Wysox, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW - Bangor Lab | Bangor, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW - Lake Scranton Lab | Roaring Brook Twp, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW Clarion Laboratory | Clarion, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW Indiana Laboratory | Indiana, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW Milton Lab | Milton, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW Philipsburg Laboratory | Philipsburg, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| PAW Punxsutawney Laboratory | Punxsutawney, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pennsylvania American Water Butler | Butler, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pennsylvania American Water Ellwood City | Wampum, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pennsylvania American Water Kane | Kane, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pennsylvania American Water New Castle | New Castle, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pennsylvania American Water: Hays Mine Laboratory | Pittsburgh, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Philadelphia Bureau of Laboratories | Philadelphia, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Presque Isle Water Testing | Erie, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Princeton Analytical Labs | Dunmore, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Pure-Test Laboratory | Myerstown, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Quakertown Veterinary Clinic | Quakertown, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| RDM-Johnstown, LLC | Johnstown, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Sahli Lab | Beaver Falls, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Special Pathogens Laboratory | Pittsburgh, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Spring Laboratory | Roaring Spring, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Suburban Testing Laboratories, Inc. | Reading, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Teaco Laboratories Inc | Leechburg, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| The York Water Company | York, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Waypoint Analytical - Pennsylvania, Inc. | Leola, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| White Oak Laboratory LLC | Ridgway, PA | Named on the official list | Public samples: ask the lab | Not on the list |
| Allentown Municipal Water Laboratory | Allentown, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Aqua Pennsylvania Inc - Shenango Valley Division | Sharon, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Aqua Pennsylvania, Inc. | Bryn Mawr, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Borough of Carlisle; Carlisle Region Water Pollution Control Facility Laboratory | Carlisle, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Capital Region Water - Water Treatment Laboratory | Harrisburg, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Chambersburg Water Treatment Plant | Fayetteville, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Chester Water Authority | Nottingham, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| City of Lancaster Water Quality Laboratory | Lancaster, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| City of Lebanon Authority Wastewater Treatment Facility Laboratory | Lebanon, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Erie Water Works Laboratory | Erie, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Hampton Shaler Water Authority | Pittsburgh, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Hulton Treatment Plant Laboratory | Oakmont, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Laurel Creek Filter Plant | Milroy, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| LBCJMA Water Treatment Plant Laboratory | Tullytown, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Maiden Creek Filter Plant Laboratory | Reading, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| MAWC Yough WTP | Connellsville, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Mohawk Valley Water Authority | Utica, NY | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Morrisville Municipal Authority Laboratory | Morrisville, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Municipal Authority of the City of New Kensington | New Kensington, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Municipal Authority of Westmoreland County McKeesport WTP | McKeesport, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| North Penn Water Authority Laboratory | Chalfont, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Northampton Borough Municipal Authority | Coplay, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| PA American Water Co - Norristown | Norristown, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Pennsylvania American Water West Shore WTP | New Cumberland, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Philadelphia Water Department Bureau of Laboratory Services | Philadelphia, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Pittsburgh Water and Sewer Authority Aspinwall Lab | Pittsburgh, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Pottstown Wastewater Treatment Plant Laboratory | Pottstown, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| St. Marys Area Water Authority | St Marys, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| State College Water Authority | State College, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| The Municipal Authority of the Borough of Greenville | Greenville, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| West View Water Authority | Pittsburgh, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Wilkinsburg-Penn Joint Water Authority Laboratory | Verona, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
| Williamsport Sanitary Authority Laboratories | Williamsport, PA | Named on the official list | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | Not on the list |
How the Pennsylvania list marks public samples (whole list). Not stated in the report.
Before you send a sample, call the lab to confirm it is currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Status can change between list updates.
Why test for coliform bacteria in Pennsylvania
About a third of the 397 domestic wells tested for bacteria in a national USGS study had total coliform. Read our coliform bacteria explainer.
EPA advises private-well owners to test every year for total coliform bacteria, nitrates, total dissolved solids and pH. [1]
Pennsylvania guidance that mentions coliform bacteria:
- Penn State's lab sells its drinking water test kits through many county Extension offices. You collect the sample yourself and send the kit to the lab by overnight mail with payment. Bacteria samples must reach the lab within 30 hours of sampling, and the lab cannot accept bacteria samples on a Friday. It says tests are generally complete within 10 to 14 business days after the lab receives the sample. [2]
Prices at Penn State Agricultural Analytical Services Laboratory (a university lab accredited by PA DEP for drinking water analysis; no effective date printed), as published when checked on 14 Nov 2026. Private certified labs set their own prices.
| Test | Price |
|---|---|
| Standard (WD01): total coliform, E. coli, pH, total dissolved solids | $60 [2] |
| Bacteria (total coliform and E. coli), single test | $40 [2] |
About 3,470,761 people in Pennsylvania used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [3] Federal limits are written for public water systems, not private wells, so testing is up to the owner.
For tests that depend on your home (farms nearby, old plumbing, a new baby), use the which-tests checklist. When results arrive, check your numbers against EPA's limits. State guidance, county data and every lab: Pennsylvania.
Other tests in Pennsylvania
Nitrate testing60 labsArsenic testing44 labsLead testing52 labsPFAS testing25 labsUranium testing21 labsRadon in water testing7 labsManganese testing50 labsVOC testing38 labs
Sources
- U.S. EPA, Protect your home's water
- Penn State Agricultural Analytical Services Laboratory, Drinking Water Testing: test packages and individual analyses service fees (no effective date printed)
- USGS, Estimated use of water in the United States, county-level data for 2015 (Dieter et al., ver. 2.0, 2018)
- PA DEP Accredited Labs Report - Drinking Water (chemistry + microbiology) (official list)
Old list ยท certified as ofSTALE - report dated 6/11/2024
PA DEP Accredited Labs Report - Drinking Water (chemistry + microbiology).
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