{ "type": "water", "pwsid": "OH3300012", "name": "Ada Village", "county": "Hardin", "population": 5334, "producer": true, "source_class": "groundwater", "label": "Groundwater wells (3 wells)", "bodies": [], "intakes": [], "wells": 3, "aquifer": "", "notes": "", "urls": [], "chain": [ "OH3300012" ], "plants": [], "facts": { "hist": [ [ "1853", "Village platted as 'Johnstown' by S. M. Johnson." ], [ "1850s", "A post office was established as the Ada Post Office, named after the postmaster's daughter Ada, and the village took that name. (The exact year could not be pinned down in the sources checked.)" ], [ "1871", "Ohio Normal School, now Ohio Northern University, founded by Henry Solomon Lehr — eighteen years after Ada was first settled — driving the village's growth." ], [ "1910", "President William Howard Taft delivered Ohio Northern's fall commencement address in Ada; he remains the only sitting U.S. president to visit the village." ], [ "1955", "Ada's first activated-sludge wastewater treatment plant built, designed for an annual average flow of 860,000 gallons per day." ], [ "1996", "Village adopted its 'Wellhead Protection Education and Management Plan,' prepared in April by S.A. Smith Consulting Services and endorsed by Ohio EPA that year." ] ], "treat": "Three wells at the water treatment plant draw from the carbonate aquifer beneath Ada; water in that aquifer generally stands 20 to 40 feet below the ground surface. The well water is aerated, softened, stabilized, filtered, chlorinated and fluoridated before being pumped into the distribution…", "press": "Not published — no psi figures, pressure zones, storage volumes, or main mileage appear in the 2025 CCR or anywhere on the village website.", "rate": { "g": null, "n": "Ada publishes no water or sewer rate schedule. The village's ordinance and resolution indices covering 2020 through 2026 contain no water or sewer rate ordinance — the only…", "m": null }, "imp": [ [ "Total Chlorine", "2.1", "ppm", "4 (MRDL)", "2025", "Range 2.0-2.2 ppm; disinfectant residual." ], [ "Total Trihalomethanes (TTHM)", "47", "ppb", "80", "2025", "Range 30.1-47.0 ppb — the closest any Ada result comes to its limit, at about 59% of the MCL." ], [ "Haloacetic Acids (HAA5)", "5.6", "ppb", "60", "2025", "Range 4.7-5.6 ppb; disinfection byproduct." ], [ "Fluoride", "0.99", "ppm", "4", "2025", "Range 0.9-1.1 ppm; naturally occurring plus water additive." ], [ "Nitrate", "0.297", "ppm", "10", "2025", "About 3% of the limit — very low for an agricultural county." ], [ "Barium", "0.0089", "ppm", "2", "2021", "Monitored less than annually because levels change slowly; well below the limit." ], [ "Cyanide", "1", "ppb", "200", "2024", "Discharge from plastic, fertilizer and steel/metal factories; 0.5% of the limit." ], [ "Lead", "0.2 (90th…", "ppb", "15 (Action…", "2025", "Zero individual results over the action level; 0 of 20 samples exceeded it. The village reports no lead…" ], [ "Copper", "0.006 (90th…", "ppm", "1.3 (Action…", "2025", "Zero individual results over the action level; 0 of 20 samples exceeded it." ], [ "Lithium", "45.8", "ppb", "unregulated (no…", "2023", "Range 45.7-45.8 ppb; detected under EPA's unregulated contaminant monitoring, which exists to help decide whether…" ] ], "proj": [ [ "Wastewater treatment plant liquid-stream replacement", 14200000, "2015", "completed", "Funded by a 20-year Water Pollution Control Loan Fund loan of $14,200,000, with design fees on a separate loan. Jones & Henry Engineers replaced the 1955…" ], [ "Service line material verification", null, "2025", "completed", "Village staff used historical records and water line installation dates to narrow the undocumented service lines, then field-verified the remainder through…" ], [ "Drinking Water Source Protection Plan revision", null, "2024", "completed", "The April 1996 'Wellhead Protection Education and Management Plan' by S.A. Smith Consulting Services, endorsed by Ohio EPA in 1996, was revised into a Drinking…" ] ], "plan": [], "stress": "Ada's wellfield draws from a carbonate aquifer that Ohio EPA and the village's own assessment rate as highly susceptible to contamination, for three stated reasons: water in the aquifer stands only 20 to 40 feet below the ground surface; probably more than 100 unused wells within the protection area breach the confining layer and provide…", "sew": { "s": "The Ada WWTP (Ohio NPDES permit 2PB00050*ND) sits on about five acres bordered by a railroad, Grass Run Creek and County Road 44, and discharges to Grass Run Creek. A 1955 activated-sludge plant designed for 860,000 gpd was replaced under a $14.2 million WPCLF-funded project; the new liquid stream — designed for 2.0 mgd average flow, 6.0…", "st": "Not documented — the village publishes no stormwater utility, fee, or drainage plan. Its Ohio EPA reporting is for sanitary sewer overflows rather than combined sewer overflows, which indicates a separate sanitary system." }, "fun": [ "Ada's sewage plant flow drops by more than 40% when Ohio Northern University lets out for the summer — roughly 1.0 million gallons a day with students in session against 0.59 million without — so the plant was designed…", "Probably more than a hundred abandoned wells puncture the confining layer above Ada's aquifer, each one a direct pathway from the ground surface down to the village's drinking water.", "Among the 33 potential contaminant sources Ada has mapped inside its wellhead protection area is a football factory: Ada is home to the only plant in the United States that makes leather footballs.", "Meter-pit inspections and excavations confirmed Ada's distribution system has no lead, no galvanized pipe requiring replacement, and no unknown-material service lines at all.", "Ada was platted as 'Johnstown' in 1853 and took its present name from its post office, which was named after the postmaster's daughter." ], "src": { "history": [ "https://en.wikipedia.org/wiki/Ada,_Ohio", "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf", "https://www.adaoh.gov/sites/default/files/2023-04/plant_profilie.pdf" ], "treatment": [ "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf" ], "pressure": [ "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf", "https://www.adaoh.gov/water-quality-reports" ], "rates": [ "https://www.adaoh.gov/ordinances", "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf" ], "impurities": [ "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf" ], "projects": [ "https://www.adaoh.gov/sites/default/files/2023-04/plant_profilie.pdf", "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf", "https://www.adaoh.gov/adas-wastewater-treatment-plant" ], "water_stress": [ "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf" ], "sewer": [ "https://www.adaoh.gov/adas-wastewater-treatment-plant", "https://www.adaoh.gov/sites/default/files/2023-04/plant_profilie.pdf", "https://www.adaoh.gov/sites/default/files/2025-03/3-11-25sso_report2025.pdf" ], "fun_facts": [ "https://www.adaoh.gov/sites/default/files/2026-06/2025_ccr.pdf", "https://www.adaoh.gov/sites/default/files/2023-04/plant_profilie.pdf", "https://en.wikipedia.org/wiki/Ada,_Ohio" ] } }, "zips_served": [ { "zip": "45810", "share": 0.6643, "dominant": true } ], "photo": { "url": "/photos/OH3300012.jpg", "caption": "View of Ada, Ohio, served by groundwater wells", "credit": "Nyttend", "license": "Public domain" }, "url": "https://crackedbuckeye.com/water/OH3300012/", "api": "https://crackedbuckeye.com/api/water/OH3300012.json", "generated": "2026-09-16", "license": "CC BY 4.0 for the compilation; each source keeps its own terms", "cite": "Cracked Buckeye (Open Shower Co), \"Ada Village · OH3300012\", https://crackedbuckeye.com/water/OH3300012/, built 2026-09-16, accessed [date].", "schema": "https://crackedbuckeye.com/api/schema.json" }