Ohio has about 1 million homes using private wells. Since property owners are responsible for the well water quality, annual water testing for homes with private water supplies is recommended. Many private laboratories in Ohio will analyze water from public and private water supplies. This publication lists laboratories willing to accept water samples from the public for testing. These water testing laboratories are approved by the Ohio Environmental Protection Agency and Ohio Department of Health (as of 2021 at epa.ohio.gov/Portals/28/documents/labcert/Combined-Lab-List.pdf). The list includes the names of laboratories in various counties of Ohio, addresses, phone numbers and websites. The Laboratories are certified to conduct certain types of chemical analysis and are labeled accordingly.
Check the fact sheet Household Well Water Testing AEX 314 (ohioline.osu.edu/factsheet/aex-314) on what to test for and how to collect a water sample. Other publications on water testing and water treatment can be found online at setll.osu.edu.
Inorganic | Secondary | Organic (synthetic and pesticides) |
Radiological | Microbiological |
ALLEN COUNTY Alloway Lima Laboratory, 1101 N. Cole St., Lima, OH 45805, (419) 223-1362, FAX (419) 227-3792, alloway.com |
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Cyanide Nitrate Nitrite Fluoride Trace Metals (12) TOC/DOC Chlorate Chlorite UV 254 Bromate Bromide Lead Copper |
Aluminum Chloride Color Corrosivity Fluoride Foaming Agents Iron Manganese Odor pH Silver Sulfate TDS Zinc |
Trihalomethanes Haloacetic acids Volatile Organic Chemicals Vinyl Chloride Carbamates Diquat Paraquat Endothall Glyphosate Alachlor Atrazine Simazine Benzo(a)Pyrene PCBs EDP/DBCP Vinyl Chloride Carbofuran Oxamyl Picloram 2 4-D Pentachlorophenol Lindane Methoxychlor Toxaphene Chlordane Endrin Di(2-ethylhexyl) Adipate Di(2-ethylhexyl)phthalate Chlorinated Acids |
Total Coliform E.coli Microcystin |
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AUGLAIZE COUNTY Brookside Lab, Inc., 200 White Mountain Dr., New Bremen, OH 45869, (419) 977-2766, FAX (419) 977-2767, blinc.com |
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Cyanide Nitrate Nitrite Sulphate Fluoride Trace Metals Iron Lead Copper |
Chloride pH TDS Zinc Alkalinity Hardness Phosphate Turbidity Stability Calcium Magnesium Silver Sodium Manganese |
Trihalomethanes Vinyl Chloride Volatile Organic Chem. Carbamates Haloacetic Acids [5] N/P Pesticide EDB/DBCP Pht/Adi Esters Chlorinated Acids Diquat Endothall Glyphosate Organohalides PAHs-Benzo(a) Pyrene PCBs |
Total Coliform Fecal E. coli |
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COLUMBIANA COUNTY Leetonia Water Lab, 1 St. Peter Street, Leetonia, Ohio 44431, (330) 427-8087, FAX (330) 427-9850, leetonia.org/laboratory |
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Contact for Lists of Tests (sent to Ream and Haager Lab) | Contact for Lists of Tests (sent to Ream and Haager Lab) | Contact for Lists of Tests (sent to Ream and Haager Lab) | Contact for Lists of Tests (sent to Ream and Haager Lab) | Contact for List of Tests (on-site) |
CUYAHOGA COUNTY CETEC Laboratory, 5000 Euclid Avenue, Suite 311, Cleveland, OH 44103, (216) 361-0517, FAX (888) 348-0212, ceteclaboratory.com |
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Hardness TDS pH |
Total Coliform E. coli HPC |
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CUYAHOGA COUNTY CWM Environmental, 4450 Johnston Parkway, Suite B, Cleveland, OH 44128, (216) 663-0808, cwmenvironmental.com |
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Nitrate Nitrite Sulfate Iron Aluminum Trace Metals [12] |
TTHM (method 524.2) HAA5 (method 552.3) VOC (524.2) pH Alkalinity TDS (2540-C) Bromide Chloride Fluoride Ortho-phos Magnesium Manganese Silicon Sodium Zinc Hardness (SM2340-B) Total Cyanide |
Total Coliform (SM-9223.B) | ||
ERIE COUNTY Erie County Health Department, 420 Superior St., Sandusky, OH 44870, (419) 626-5623, eriecohealthohio.com/regional-response-water-laboratory. |
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Depends on Source and Purpose of Test. Contact for more information. | Depends on Source and Purpose of Test. Contact for more information. | Depends on Source and Purpose of Test. Contact for more information. | Depends on Source and Purpose of Test. Contact for more information. | Depends on Source and Purpose of Test. Contact for more information. |
FRANKLIN COUNTY Advanced Analytics Laboratories, Inc., 1025 Concord Avenue, Columbus, OH 43212, (614) 299-9922, advancedanalyticslabs.com |
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Trace Metals [12] Aluminum Nitrite Sulfate |
Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium, Total Cobalt Copper Iron Lead Lithium Magnesium pH Phosphorous Acidity Alkalinity Alk. Bicarbonate/Carbonate Ammonia Nitrogen BOD/CBOD Chlorine, total Chlorine, free Hexavalent Chromium COD Conductivity Cyanide DO Flash Point Hardness Total Solids Total Dissolved Solids Nitrogen Oil and Grease Organic Nitrogen Paint Filter Sulfide Turbidity TKN TOC TOX Total Suspended Solids |
Pesticides Herbicides Total Toxic Organics |
Total Coliform MMO-MUG E. coli Fecal Coliform Coliform-Membrane Filter/Plate Count E. coli Plate Count |
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FULTON COUNTY Archbold Water Plant Laboratory, 700 North Street, Archbold, OH 43502, (419) 445-2506, archbold.com/water |
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E. coli Quanti-Tray Microcystin |
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GEAUGA COUNTY Geauga Co. Department of Water Resources, 470 Center Street, Bldg. 3, Chardon, OH 44024-1068, (440) 279-1975, FAX (440) 285-2864, gcdwr.org |
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Nitrate Nitrite Iron |
Manganese pH Alkalinity Hardness Stability Phosphate Residual Chlorine TDS |
Total Coliform Fecal Coliform E. coli |
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HOLMES COUNTY Holmes Laboratory, 3559 US Route 62, Millersburg, OH 44654, (330) 893-2933, (330) 893-1326, holmeslab.com |
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Total Coliform E.coli |
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LOGAN COUNTY Logan County Health District Laboratory, 310 South Main Street, Bellefontaine, OH 43311, (937) 592-9040, FAX (937) 592-6746, loganhealth.org |
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Total Coliform E. coli |
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MAHONING COUNTY Cardinal Environmental Laboratories, LLC, 2870 Salt Springs Road, Youngstown, Ohio 44509, (330) 797-884, FAX (330) 797-3264, cardinalenvirolabs.net/Index.html |
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Cyanide (Total, Free and Low-Level) Nitrate Nitrite NOX Fluoride Metals Sulfate |
Metals Ammonia Chlorine Chloride TDS pH Alkalinity Hardness Phosphate Phosphorous Turbidity Bromide Orthophosphate Hexavalent Chromium Total Nitrogen TKN Sulfide |
PAH TPH PCBs HAA5 TTHM SVOC VOC Pesticides BTEX TOX |
Total Coliform Bacteria (presence/absence with E. coli check) Total Coliforms (count) Fecal Coliform (presence/absence) Fecal Bacteria by MPN Total Plate Count Legionella |
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MARION COUNTY Alloway Marion Laboratory, 1776 Marion-Waldo Rd., Marian, OH 43302, (740) 389-5991, FAX (740) 389-1481, alloway.com |
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Cyanide Nitrate Nitrite Trace Metals (12) TOC/DOC Chlorate Chlorite UV 254 Bromate Bromide Lead Copper |
Aluminum Chloride Color Corrosivity Fluoride Foaming Agents Iron Manganese Odor pH Silver Sulfate TDS Zinc |
Trihalomethanes Haloacetic acids Volatile Organic Chemicals Vinyl Chloride Carbamates Diquat Paraquat Endothall Glyphosate Alachlor Atrazine Simazine Benzo(a)Pyrene PCBs EDP/DBCP Vinyl Chloride Carbofuran Oxamyl Picloram 2 4-D Pentacholorphenol Lindane Methoxychlor Toxaphene Chlordane Endrin Di(2-ethylhexyl) Adipate Di(2-ethylhexyl)phthalate Chlorinated Acids |
Total Coliform E.coli Microcystin |
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MEDINA COUNTY Eastern Laboratory Services, LTD., Suite 500-Route-18, 1035 Medina Road, Medina, OH 44256, (330) 670-7920, FAX (937) 499-1249, elslab.com |
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Nitrates Nitrites (sent to off-site lab for testing) |
Coliforms E. coli Pseudomonas |
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MERCER COUNTY Celina Water Treatment Plant, 714 S Sugar St., Celina, OH 45822, (419) 586-2270 |
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Total Coliform and E. Coli (presence/absence analysis as well as enumeration) Total Microcystin |
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MONTGOMERY COUNTY Con-Test Analytical Laboratory, 25 Holiday Drive, Englewood, Ohio 45322, (937) 209-8752 |
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Trace Metals: Sb, As, Ba, Be, Cd, Cr, Pb, Se, Tl Total Cyanide Nitrate Nitrite Nitrate/Nitrogen |
Aluminum Copper Iron Manganese Silver Magnesium Silicon Zinc Phosphorus Fluoride Orthophosphate Stability Chloride pH TDS Sulfate Alkalinity DOC TOC Hardness Per- & Polyfluoroalkyl Substances |
EDP/DBCP Semi-Volatile Organic Compounds 2,3,7,8-TCDD Chlorine THMs HAAs |
Gross Alpha Gross Beta Radium-226 Radium-228 Tritium |
Total Coliform and E. coli |
MONTGOMERY COUNTY Dayton Central Water Quality Laboratory, 3210 Chuck Wagner Lane, Dayton, OH 45414, (937) 333-6093, daytonohio.gov |
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Sulfate Nitrate Aluminum Trace Metals [12] Fluoride |
Turbidity Sodium pH Calcium Hardness Alkalinity Zinc Manganese Potassium Vanadium Total Solids Meter Total Filter Silver Chlorine Residual Chloride |
Can send to contract lab for testing. | Can send to contract lab for testing. | MMO-MUG MF |
MONTGOMERY COUNTY Pace Analytical, 25 Holiday Drive, Englewood, Oh 45322, (937) 832-8242, FAX (937) 832-2868, pacelabs.com |
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Contact for Lists of Tests | Contact for Lists of Tests | Contact for Lists of Tests | ||
PERRY COUNTY Perry Environmental Laboratory, 552 West Broadway, New Lexington, OH 43764, (740) 343-7078. |
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Contact for Lists of Tests | Contact for Lists of Tests | Contact for Lists of Tests (sent off-site) |
Contact for Lists of Tests (sent off-site) |
Contact for Lists of Tests |
RICHLAND COUNTY Alloway Mansfield Laboratory, 1500 W. Fourth St., Suite 4, Mansfield, OH 44906, (419) 525-1644, FAX (419) 524-5575, alloway.com |
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Cyanide Nitrate Nitrite Fluoride Trace Metals (12) TOC/DOC Chlorate Chlorite UV 254 Bromate Bromide Lead Copper |
Aluminum Chloride Color Corrosivity Fluoride Foaming Agents Iron Manganese Odor pH Silver Sulfate TDS Zinc |
Trihalomethanes Haloacetic acids Volatile Organic Chemicals Vinyl Chloride Carbamates Diquat Paraquat Endothall Glyphosate Alachlor Atrazine Simazine Benzo(a)Pyrene PCBs EDP/DBCP Vinyl Chloride Carbofuran Oxamyl Picloram 2 4-D Pentacholorphenol Lindane Methoxychlor Toxaphene Chlordane Endrin Di(2-ethylhexyl) Adipate Di(2-ethylhexyl)phthalate Chlorinated Acids |
Total Coliform E.coli Microcystin |
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SENECA COUNTY BoJhun Environmental Services, 222 South Main St., Suite A, Fostoria, OH 44830, (419) 436-7066, FAX (419) 982-2112, bojhun.com |
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Contact for Lists of Tests | ||||
SENECA COUNTY National Center for Water Quality Research, Heidelberg University, 310 E. Market Street, Tiffin, Ohio 44883, (419) 448-2198, (800) 925-9250, x2198, ncwqr.org/water-testing/well-water-testing |
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Nitrate Nitrite Ammonia Fluoride Sulfate Trace Metals [12] Iron |
Selenium Aluminum Manganese Zinc Sodium Calcium Strontium Magnesium Potassium Silica Vanadium Chloride Soluble Phosphorus Silica Conductivity |
Atrazine Simazine Alachlor Metoachlor Acetochlor |
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STARK COUNTY Canton Water Laboratory, 2664 Harrisburg Road NE, Canton, OH 44705, (330) 489-3035, FAX (330) 455-5226, cantonohio.gov/195/Laboratory |
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Copper Lead Iron Total Nitrite/Nitrate |
Alkalinity Stability Total & Phenolpthalein DPD Meter Calibration Fluoride Hardness Manganese pH Phosphate Sodium Turbidity |
Total Coliform E.coli MMO-MUG |
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SUMMIT COUNTY American Analytical Laboratories, 840 South Main Street, Akron, Ohio 44311, (330) 535-1300, FAX (330) 535-7246, NOTE: Call for additional testing as AAL does a lot of special testing and research projects. |
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Trace Metals [12] Mercury Hardness |
Aluminum Calcium Iron Magnesium Manganese Silicon Silver Zinc |
Colilert-24 (SM 9223-B) | ||
TUSCARAWAS COUNTY Ream & Haager Laboratories, Inc., 179 West Broadway Street, Dover, OH 44622, (330) 343-3711, rhlab.us/services.php |
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Contact for Lists of Tests | Contact for Lists of Tests | Contact for Lists of Tests (sent to off-site) |
Contact for Lists of Tests | Contact for Lists of Tests |
WILLIAMS COUNTY Bryan Water Plant Laboratory, 841 East Edgerton Street, Bryan, OH 43506, (419) 633-6100, FAX (419) 633-6105, cityofbryan.net/drinking-water |
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MMO-MUG Quanti-Tray |
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OUT OF STATE Analytical Services, Inc., 130 Allen Brook Lane, Williston, VT 05495, 800.723.4432, analyticalservices.com |
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Algae Enumeration and Identification Bacterial Identification Cryptosporidium Giardia Microscopic Particulate Analysis Nuisance Organisms (Iron Related Bacteria, Sulfate Reducing Bacteria, Slime Forming Bacteria, etc.) Viruses Total Coliform E. coli |
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OUT OF STATE EMSL Analytical Inc., 200 Route 130 North, Cinnaminson, NJ 08077, (800) 220-3675, emsl.com |
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Asbestos Method 110.2 |
Cryptosporidium Method EPA 1623.1 |
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OUT OF STATE Eurofins Eaton Analytical, LLC Mid-Atlantic States Region, 110 South Hill Street, South Bend, IN 46617 AND 750 Royal Oaks Drive, Suite 100, Monrovia, CA 91016, (215) 499-4578, eurofinsus.com |
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Trace Metals [12] Nitrate Nitrite Free Cyanide Fluoride |
Aluminum Chloride Color Copper Corrosivity Fluoride Foaming Agents Iron Manganese Odor Silver Sulfate TDS Turbidity Zinc Calcium Hardness |
Alachlor Atrazine Benzo(a) Pyrene Carbofuran Chlordane Dalapon Di(2-ethylhexyl)adipate Di(2-ethylhexyl)phthalate DBCP Dinoseb Diquat 2, 4 D Endothall Endrin Ethylene dibromide Glyphosate Heptachlor Heptachlor Epoxide Hexachlorocyclopentadiene Lindane Methoxchlor Oxamyl Pentachlorophenol Picloram PCB Simazine 2,3,7,8-TCDD Toxaphene 2,4,5-TP |
Gross Alpha Gross Beta Radium 226 Radium 228 Uranium |
Total Coliform E. coli Heterotrophic Plate Count |
Trace metals (12): Antimony, Arsenic, Barium, Beryllium, Cadmium, Chromium, Copper, Lead, Mercury, Nickel, Selenium, Thallium