{ "type": "water", "pwsid": "OH0902312", "name": "Oxford City", "county": "Butler", "population": 24000, "producer": true, "source_class": "groundwater", "label": "Great Miami Buried Valley Aquifer (wells)", "bodies": [], "intakes": [], "wells": 7, "aquifer": "Great Miami Buried Valley Aquifer", "notes": "Oxford draws from well fields north and east of the city, tapping the Great Miami Buried Valley Aquifer, a shallow sand-and-gravel aquifer.", "urls": [ "https://www.oxfordwater.com/Sites/Oxford_Water/Documents/Water/CcrReport2023/CcrReport2023.pdf", "https://www.cityofoxford.org/our_community/city_services/water_production___distribution.php" ], "chain": [ "OH0902312" ], "plants": [ { "n": "Oxford Water Treatment Plant", "a": "Oxford, OH 45056 (town center estimate; specific well field address not confirmed)", "la": 39.507, "lo": -84.7452, "pt": "approximate", "wb": "Great Miami River buried valley aquifer", "src": "Seven active wells drawing from the sand-and-gravel Great Miami buried valley aquifer near Oxford", "cls": "groundwater", "in": [ { "n": "Oxford Main Well Field", "wb": "Great Miami Buried Valley Aquifer (sand and gravel, up to ~200 ft thick)", "role": "primary", "src": "Main group of city wells drawing from the sand-and-gravel buried-valley aquifer near Oxford; exact siting not confirmed (6 wells)", "la": 39.507, "lo": -84.7452, "pt": "approximate", "wells": [ "Well 2", "Well 3", "Well 5", "Well 7", "Well 8", "Well 6" ] }, { "n": "Seven Mile Creek Well Field", "wb": "Great Miami Buried Valley Aquifer (sand and gravel)", "role": "secondary", "src": "Single well sited along Seven Mile Creek, part of the same buried-valley sand-and-gravel aquifer system that supplies Oxford (1 well)", "la": 39.507, "lo": -84.7452, "pt": "approximate", "wells": [ "Well R" ] } ] } ], "facts": { "hist": [ [ "early 1990s", "The current Oxford Water Treatment Plant was built - with no water softening capability." ], [ "2024", "PFAS confirmed in multiple samples at the Seven Mile well field in May 2024 testing, none above regulatory limits; no consistent positive samples at the Four Mile Valley well field." ], [ "2024", "City proposes the largest capital improvement plan in its history, $76.44 million for FY2025-2029, headlined by $18.9 million of water treatment plant improvements to soften the water and remove PFAS…" ], [ "2026", "June 2, 2026: City Council approved a contract with Building Crafts Inc. to construct the new treatment facility - $23,632,340 construction plus $1,167,660 contingency ($24.8 million)." ], [ "2026", "March 30, 2026: second round of federal PFAS compliance sampling completed; only PFBS and PFOA detected, both far below limits." ] ], "treat": "All groundwater. Well fields north and east of the city (the Four Mile Valley and Seven Mile fields) draw from the Greater Miami Buried Valley Aquifer, a federally designated Sole Source Aquifer of glacial sand and gravel. The Water Treatment Plant, built in the early 1990s, chlorinates and…", "press": "Not published - no psi figure appears on the city's water treatment and distribution pages or in the 2025 Consumer Confidence Report.", "rate": { "g": null, "n": "Not published online, confirmed on two city pages: the Utilities page says the city provides water, sewer and refuse service and gives only a phone number (513-524-5221), and the…", "m": null }, "imp": [ [ "Nitrate", "1.45", "ppm", "10 (MCL)", "2025", "Fertilizer runoff, septic/sewage leaching, natural deposits." ], [ "Fluoride", "1.01", "ppm", "4 (MCL)", "2025", "Range 0.87-1.01; added to promote strong teeth." ], [ "Total trihalomethanes (TTHM)", "15.0", "ppb", "80 (MCL)", "2025", "Range 9.4-15." ], [ "Haloacetic acids (HAA5)", "2.3", "ppb", "60 (MCL)", "2025", "Range 1.4-2.3." ], [ "Chlorine", "1.12", "ppm", "4 (MRDL)", "2025", "Range 1.08-1.32." ], [ "Lead (90th percentile)", "2.4", "ppb", "15 (action…", "2025", "None of 30 samples above the action level." ], [ "Copper (90th percentile)", "0.18", "ppm", "1.3 (action…", "2025", "None of 30 samples above the action level." ], [ "PFBS (perfluorobutanesulfonic acid)", "8.2", "ppt", "no federal MCL", "2026", "Plant tap; range 1.26-8.2. Sampled 3/30/2026 under the 2024 federal PFAS rule." ], [ "PFOA (perfluorooctanoic acid)", "0.21", "ppt", "4 (federal MCL)", "2026", "Plant tap; range ND-0.21. The other four regulated PFAS (PFOS, HFPO-DA, PFHxS, PFNA) were non-detect." ], [ "Hardness (not a regulated contaminant)", "340-380", "ppm", "no standard…", "2026", "Reported in local coverage of the softening project; the new membrane plant targets about 120 ppm." ] ], "proj": [ [ "New membrane-softening Water Treatment Facility", 24800000, "2026-", "planned", "Council approved the construction contract with Building Crafts Inc. on June 2, 2026: $23,632,340 construction plus $1,167,660 contingency. Adds membrane…" ], [ "Lead Service Line Replacement Program", null, "ongoing", "under construction", "Council-approved city funding pays for the property owner's portion of lead, galvanized or unknown-material service lines at no cost and with no reimbursement…" ] ], "plan": [ [ "Biotower media replacement (wastewater treatment plant)", 5700000, "FY2025", "planned", "Listed in the FY2025-2029 capital improvement plan." ], [ "Water well revamping", null, "FY2025", "planned", "In the capital improvement plan; may include installing an additional well. No cost published." ], [ "Solar installations at the water treatment plant, Seven Mile Well Field and wastewater plant", null, "unknown", "proposed", "Under discussion; the water treatment plant site showed the highest lifetime savings, just over $580,000. No capital cost published." ] ], "stress": "Correction to the previous draft. The Greater Miami Buried Valley Aquifer is a federally designated Sole Source Aquifer and a high-yield source, but Oxford's own 2025 CCR states that all of its water sources 'have been determined to have a high susceptibility to contamination, largely due to the shallow depth of the aquifer and the lack…", "sew": { "s": "The city operates its own Wastewater Treatment Plant at 501 McKee Ave., treating about 2.25 million gallons per day collected through more than 65 miles of sewer pipe and discharging to Four Mile Creek under an NPDES permit. Design capacity is not published. The capital plan includes a $5.7 million biotower media replacement. No combined…", "st": "The city groups stormwater with its water and wastewater services but publishes no stormwater fee, program detail or flooding assessment in the pages reviewed." }, "fun": [ "Oxford's tap water is genuinely hard - 340 to 380 ppm - and the city has never softened it; the plant now being built will bring roughly 60% of the supply down to about 120 ppm.", "The utility serves more than 22,500 customers, far more than the year-round population, because Miami University is on the system.", "Oxford's wells sit in a federally designated Sole Source Aquifer, but the same shallowness that makes the aquifer productive is why the city's own report calls all of its sources highly susceptible to contamination.", "The city is a claimant in the 3M PFAS class-action settlement, with payouts continuing through 2036, and has already been promised reimbursement of the roughly $6,000 it spent on PFAS testing.", "Oxford pays the full cost of replacing the homeowner's side of a lead service line - the program FAQ answers 'Will I need to reimburse the City? No!'" ], "src": { "history": [ "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/", "https://www.oxfreepress.com/oxford-proposes-largest-capital-improvement-plan-in-city-history/", "https://www.oxfreepress.com/pfas-settlement-brings-oxford-money/", "https://www.cityofoxford.org/2025%20Consumer%20Confidence%20Report.pdf" ], "treatment": [ "https://www.cityofoxford.org/departments/services_engineering/water_treatment_water_distribution_divisions.php", "https://www.cityofoxford.org/2025%20Consumer%20Confidence%20Report.pdf", "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/" ], "pressure": [ "https://www.cityofoxford.org/departments/services_engineering/water_treatment_water_distribution_divisions.php", "https://www.cityofoxford.org/2025%20Consumer%20Confidence%20Report.pdf" ], "rates": [ "https://www.cityofoxford.org/departments/finance_utilities/utilities/index.php", "https://www.cityofoxford.org/departments/finance_utilities/billing_payment_options.php", "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/", "https://www.oxfordwater.com/" ], "impurities": [ "https://www.cityofoxford.org/2025%20Consumer%20Confidence%20Report.pdf", "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/" ], "projects": [ "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/", "https://www.cityofoxford.org/departments/services_engineering/lead_service_line_replacement_program.php" ], "planned": [ "https://www.oxfreepress.com/oxford-proposes-largest-capital-improvement-plan-in-city-history/" ], "water_stress": [ "https://www.cityofoxford.org/2025%20Consumer%20Confidence%20Report.pdf", "https://www.oxfreepress.com/pfas-settlement-brings-oxford-money/", "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/" ], "sewer": [ "https://www.cityofoxford.org/departments/services_engineering/wastewater_treatment_wastewater_collection_divisions.php", "https://www.oxfreepress.com/oxford-proposes-largest-capital-improvement-plan-in-city-history/" ], "fun_facts": [ "https://www.oxfreepress.com/oxford-to-construct-new-water-treatment-facility/", "https://www.cityofoxford.org/2025%20Consumer%20Confidence%20Report.pdf", "https://www.oxfreepress.com/pfas-settlement-brings-oxford-money/", "https://www.cityofoxford.org/departments/services_engineering/lead_service_line_replacement_program.php" ] } }, "zips_served": [ { "zip": "45056", "share": 0.7685, "dominant": true } ], "photo": { "url": "/photos/OH0902312.jpg", "caption": "Uptown Oxford, Ohio, viewed from the public square", "credit": "Chris Light (talk)", "license": "CC BY-SA 3.0" }, "url": "https://crackedbuckeye.com/water/OH0902312/", "api": "https://crackedbuckeye.com/api/water/OH0902312.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), \"Oxford City · OH0902312\", https://crackedbuckeye.com/water/OH0902312/, built 2026-09-16, accessed [date].", "schema": "https://crackedbuckeye.com/api/schema.json" }