{ "type": "water", "pwsid": "OH1201112", "name": "Clark County Park Layne", "county": "Clark", "population": 4221, "producer": true, "source_class": "groundwater", "label": "Groundwater wells (3 wells)", "bodies": [], "intakes": [], "wells": 3, "aquifer": "", "notes": "", "urls": [], "chain": [ "OH1201112" ], "plants": [], "facts": { "hist": [ [ "1958", "Clark County's utilities operation was established by the Board of County Commissioners; it now runs the Park Layne, Green Meadows I and II, Limecrest, Northridge, Center Point 70, Rockway…" ], [ "1816", "Medway, the village the Park Layne district supplies, was platted and named for sitting midway between Springfield and Dayton (Wikipedia)." ], [ "1992", "The county's two Airvac vacuum sewage collection systems serving Medway and Crystal Lakes were constructed." ], [ "2023-11", "A contractor's survey of the Crystal Lakes vacuum station steel collection tank found wall thickness reduced to the point that both station tanks needed replacement; pinholes had earlier been patched…" ], [ "2024", "Park Layne participated in the fifth round of the Unregulated Contaminant Monitoring Rule (UCMR5); results are available only by phoning the utilities director." ], [ "2025", "Clark County held an unconditioned license to operate the Park Layne system and recorded no water quality violations." ] ], "treat": "Groundwater. The Park Layne Well Field at 886 Weinland Street draws from the Great Miami Buried Valley Aquifer through three wells producing an average of about 439,000 gallons per day. Treatment documented in the 2025 CCR is chlorination (total chlorine 0.79-1.27 ppm in distribution) and…", "press": "Not published; the county's CCR and billing pages give no system pressure figures.", "rate": { "g": 5.68, "n": "Park Layne district water, effective on bills sent after 1-29-2026 (Appendix A of the Clark County Water and Sewer Regulations): 5/8-inch meter minimum $16.16 per month, which…", "m": 33.16 }, "imp": [ [ "Nitrate", "4.14", "ppm", "10 (MCL)", "2025", "Roughly 41% of the MCL in a shallow, highly susceptible buried-valley aquifer with agricultural and septic sources…" ], [ "Copper", "0.360 (90th…", "ppm", "1.3 (action…", "2024", "0 of 20 samples over the action level. No lead result appears in the 2025 CCR's detected-contaminant table." ], [ "Total trihalomethanes (TTHM)", "17.2 (range…", "ppb", "80 (MCL)", "2025", "Low, as expected for chlorinated groundwater with little organic carbon." ], [ "Total chlorine", "1.13 (range…", "ppm", "4 (MRDL)", "2025", "Residual disinfectant in the Park Layne distribution system." ], [ "Fluoride", "1.01 (range…", "ppm", "4 (MCL)", "2025", "Fluoridated to about the optimal 0.7-1.0 ppm range." ] ], "proj": [ [ "Crystal Lakes and Medway vacuum sewer tank replacement", 1057000, "2026", "planned", "Fiberglass replacement collection tanks at the Medway Station (214 Sycamore Street) and Crystal Lakes Station (5 Elm Road), with the corroded 1992 steel tanks…" ], [ "Lead service line inventory", null, "2024", "completed", "Published as a shared spreadsheet linked from the Park Layne CCR." ] ], "plan": [], "stress": "Ohio EPA's source water assessment found the aquifer supplying Park Layne has a high susceptibility to contamination because a relatively thin clay layer overlies it, the water table is shallow, and potential contamination sources sit in the protection areas. The district has only three wells averaging about 439,000 gpd for roughly 4,200…", "sew": { "s": "Clark County Utilities also provides sanitary sewer in the Park Layne district (5/8-inch minimum $22.07 per month plus $5.05 per 100 cubic feet over 300 cf). Nearby Medway and Crystal Lakes are served by two 1992 Airvac vacuum collection systems in which up to four houses drain by gravity into each vacuum pit; the county does not publish…", "st": "Not documented in county utilities materials." }, "fun": [ "Park Layne's three wells sit in the Great Miami Buried Valley Aquifer and average about 439,000 gallons a day - roughly 104 gallons per person served.", "Clark County runs eight separately priced water and sewer districts; Park Layne is one of the cheapest because it pumps its own groundwater, while the Northridge and Rockway districts carry a 12% City of Springfield…", "In the Medway and Crystal Lakes vacuum sewer systems, sewage is pulled to the collection stations under vacuum rather than pushed by gravity - and because the collection tank cannot be taken out of service without…", "The county's own 2025 report misspells its system as the 'Park Lanye PWS' in the unregulated contaminant section." ], "src": { "history": [ "https://www.clarkcountyohio.gov/169/About-Us", "https://www.clarkcountyohio.gov/DocumentCenter/View/9028", "https://www.clarkcountyohio.gov/DocumentCenter/View/9261", "https://en.wikipedia.org/wiki/Medway,_Ohio" ], "treatment": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/9261", "https://data.epa.gov/efservice/WATER_SYSTEM/PWSID/OH1201112/JSON" ], "pressure": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/9261" ], "rates": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/8944", "https://www.clarkcountyohio.gov/170/Billing-Information" ], "impurities": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/9261" ], "projects": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/9028", "https://www.clarkcountyohio.gov/172/Current-Projects", "https://www.clarkcountyohio.gov/DocumentCenter/View/9261" ], "water_stress": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/9261", "https://data.epa.gov/efservice/WATER_SYSTEM/PWSID/OH1201112/JSON" ], "sewer": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/8944", "https://www.clarkcountyohio.gov/DocumentCenter/View/9028", "https://www.clarkcountyohio.gov/170/Billing-Information" ], "fun_facts": [ "https://www.clarkcountyohio.gov/DocumentCenter/View/9261", "https://www.clarkcountyohio.gov/DocumentCenter/View/8944", "https://www.clarkcountyohio.gov/DocumentCenter/View/9028" ] } }, "zips_served": [ { "zip": "45341", "share": 0.336, "dominant": true }, { "zip": "45344", "share": 0.2418, "dominant": false } ], "photo": { "url": "/photos/OH1201112.jpg", "caption": "Medway, Ohio (Bethel Township Fire Department), the town served by this groundwater well system", "credit": "Logan Rickert", "license": "CC BY 2.0" }, "url": "https://crackedbuckeye.com/water/OH1201112/", "api": "https://crackedbuckeye.com/api/water/OH1201112.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), \"Clark County Park Layne · OH1201112\", https://crackedbuckeye.com/water/OH1201112/, built 2026-09-16, accessed [date].", "schema": "https://crackedbuckeye.com/api/schema.json" }