{ "type": "water", "pwsid": "OH4301511", "name": "Aqua Ohio - Mentor", "county": "Lake", "population": 74500, "producer": true, "source_class": "erie", "label": "Lake Erie", "bodies": [ "Lake Erie" ], "intakes": [ "Ohio Service Mentor Lake E" ], "wells": 0, "aquifer": "", "notes": "Aqua Ohio's Mentor system draws directly from Lake Erie via its own intake (formerly Ohio Water Service).", "urls": [ "https://prod.aquawater.com/WaterQualityReports/2024/OH/OH4301511.pdf" ], "chain": [ "OH4301511" ], "plants": [ { "n": "Aqua Ohio - Mentor Water Treatment Plant", "a": "7748 Twilight Drive, Mentor-on-the-Lake, OH 44060", "la": 41.7126, "lo": -81.3395, "pt": "plant", "wb": "Lake Erie", "src": "Lake Erie, drawn through Aqua Ohio's shoreline treatment plant on Twilight Drive in Mentor-on-the-Lake", "cls": "erie" } ], "facts": { "hist": [ [ "2018", "Aqua Ohio replaced 7,700 linear feet of aging, undersized water mains and installed 22 new fire hydrants across three Mentor projects." ], [ "2018", "Aqua added a carbon feed system at the Mentor plant to improve treatment for potential harmful algal blooms in Lake Erie." ], [ "2023", "Mentor took part in the fifth round of the Unregulated Contaminant Monitoring Rule, testing 29 PFAS compounds and lithium with no detections." ], [ "2014-2024", "Aqua invested nearly $522 million across its Ohio water systems for reliability and regulatory compliance, per its 2024 CCR letter." ] ], "treat": "Lake Erie water enters through an offshore intake, is filtered through media filters, dosed through a carbon feed system added in 2018 for algal-bloom events, fluoridated, and disinfected with chlorine; TOC removal and turbidity are tracked as compliance measures.", "press": "Not published; no psi figure appears in the 2024 CCR or in any Aqua Ohio material reviewed.", "rate": { "g": null, "n": "No current Mentor residential water rate found in sources reviewed. PUCO case 25-0594-WW-AIR is an Aqua wastewater case and does not set Mentor water rates.", "m": null }, "imp": [ [ "Total Trihalomethanes (TTHM)", "59.5", "ppb", "80 ppb (MCL)", "2024", "Highest locational running annual average; individual results ranged 17.6-106 ppb. No violation." ], [ "Haloacetic Acids (HAA5)", "31.9", "ppb", "60 ppb (MCL)", "2024", "Range 15.3-42.6 ppb; byproduct of chlorination." ], [ "Lead (90th percentile)", "ND", "ppb", "15 ppb action…", "2023", "Not detected; 0 of 30 samples exceeded the action level." ], [ "Copper (90th percentile)", "0.23", "ppm", "1.3 ppm action…", "2023", "0 of 30 samples exceeded the action level." ], [ "Nitrate", "0.9", "ppm", "10 ppm (MCL)", "2024", "Range ND-0.9 ppm; well below the limit." ], [ "Fluoride", "1.0", "ppm", "4 ppm (MCL)", "2023", "Range 0.8-1.1 ppm; natural deposits plus water additive." ], [ "Total organic carbon (removal ratio)", "0.9", "ratio", "TT: ratio of…", "2024", "Below 1.0, but no violation: Mentor met the alternative TOC compliance criteria." ], [ "PFAS (29 compounds, UCMR5)", "not detected", "ppt", "n/a (monitoring…", "2023", "No detections of any of the 29 PFAS compounds or lithium." ] ], "proj": [ [ "Mentor water main and hydrant replacement", 1891250, "2018", "completed", "7,700 ft of main on Johnnycake Ridge Rd, Perkins Dr/Low Ridge Ln and Hopkins Rd; 22 new hydrants plus 6 replaced." ], [ "Carbon feed system, Mentor treatment plant", 400000, "2018", "completed", "Added to improve treatment for potential harmful algal blooms in Lake Erie." ], [ "Filter media and under-drain replacement", 190000, "2018", "completed", "Rebuilt three filters at the Mentor plant to improve reliability and finished-water quality." ] ], "plan": [ [ "Aqua Ohio statewide capital investment", 67000000, "2025", "planned", "Roughly $67 million planned across all Aqua Ohio systems for treatment and delivery upkeep; not Mentor-specific." ] ], "stress": "The offshore Lake Erie intake sits in a protection area Aqua calls susceptible to wastewater discharges, agricultural and urban runoff, oil and gas transport, and shipping and boating. Aqua spent $400,000 in 2018 on a carbon feed system for potential algal blooms. No violations in 2024.", "sew": { "s": "Mentor's sanitary sewer is run by Lake County DoU, not Aqua: the Gary L. Kron (formerly Greater Mentor) Water Reclamation Facility, a 20 MGD activated sludge plant discharging to Lake Erie, serves Mentor, Mentor-on-the-Lake, Grand River, Fairport Harbor, Concord Twp and parts of Painesville Twp and Kirtland.", "st": "Not covered in the CCR or Aqua materials reviewed; Aqua Ohio - Mentor is a water-only utility." }, "fun": [ "Aqua's 2024 CCR letter notes customers get treated water for 'about a penny a gallon.'", "Aqua Ohio invested nearly $522 million across its Ohio water systems from 2014 to 2024 on reliability and compliance.", "Mentor's 2024 TTHM results ranged from 17.6 all the way to 106 ppb, with some single samples above the 80 ppb limit, yet the system stayed compliant because the rule is scored on a running annual average (59.5 ppb).", "Back in 2018 Aqua spent $400,000 on a carbon feed system at the Mentor plant for one specific reason: to be ready for harmful algal blooms in Lake Erie." ] }, "zips_served": [ { "zip": "44060", "share": 0.9667, "dominant": true }, { "zip": "44094", "share": 0.1323, "dominant": false }, { "zip": "44077", "share": 0.1304, "dominant": false } ], "photo": { "url": "/photos/OH4301511.jpg", "caption": "Lake Erie (frozen) as seen from Mentor, Ohio, the source for this system", "credit": "No machine-readable author provided. GandZ assumed (based on copyright claims).", "license": "CC BY-SA 3.0" }, "url": "https://crackedbuckeye.com/water/OH4301511/", "api": "https://crackedbuckeye.com/api/water/OH4301511.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), \"Aqua Ohio - Mentor · OH4301511\", https://crackedbuckeye.com/water/OH4301511/, built 2026-09-16, accessed [date].", "schema": "https://crackedbuckeye.com/api/schema.json" }