{
  "type": "water",
  "pwsid": "OH3100812",
  "name": "Harrison City",
  "county": "Hamilton",
  "population": 11600,
  "producer": true,
  "source_class": "groundwater",
  "label": "Great Miami Buried Valley Aquifer (wells)",
  "bodies": [],
  "intakes": [],
  "wells": 7,
  "aquifer": "Great Miami Buried Valley Aquifer",
  "notes": "City of Harrison draws from its own well field (4 wells at Thomas Lane, 2 wells at Harrison-Brookville Rd) into the regional Great Miami Buried Valley Aquifer.",
  "urls": [
    "https://www.harrisonohio.gov/210/Water",
    "https://www.harrisonohio.gov/DocumentCenter/View/4907/Harrison-CCR-2023"
  ],
  "chain": [
    "OH3100812"
  ],
  "plants": [
    {
      "n": "Harrison Water Treatment Plant",
      "la": 39.2606,
      "lo": -84.8083,
      "pt": "approximate",
      "wb": "Great Miami Buried Valley Aquifer",
      "src": "Great Miami Buried Valley Aquifer (wells)",
      "cls": "groundwater",
      "in": [
        {
          "n": "Thomas Lane Well Field",
          "wb": "Great Miami Buried Valley Aquifer (sand-and-gravel glacial outwash filling a buried bedrock valley along the lower Whitewater River, a…",
          "role": "primary",
          "src": "All 7 EPA-listed wells share the same city-of-Harrison naming prefix, indicating one well field near Thomas Lane in the Whitewater River valley, drawing from thick sand-and-gravel outwash in the Great Miami Buried Valley Aquifer. (7 wells)",
          "la": 39.2606,
          "lo": -84.8083,
          "pt": "approximate",
          "sh": 100,
          "wells": [
            "Well 3",
            "Well 6",
            "Well 7",
            "Well 8",
            "Harrison, City Of Well In 0001",
            "Harrison, City Of Well In 0002",
            "Harrison, City Of Well In 0003"
          ]
        }
      ]
    }
  ],
  "facts": {
    "hist": [
      [
        "2017",
        "Conceptual design begun for a reverse-osmosis membrane softening system to stop hard, iron-bearing water from damaging plant and distribution infrastructure."
      ],
      [
        "2018-2019",
        "City secured Ohio EPA revolving-loan financing for the design and then the construction of the softening plant."
      ],
      [
        "2020",
        "Construction of the RO softening improvements started in October, on an 18-month schedule."
      ],
      [
        "2022",
        "1.5 MGD reverse-osmosis membrane softening system placed in service in the summer, cutting finished-water hardness to about 40 mg/L as CaCO3 (8 grains per gallon) with iron non-detectable."
      ],
      [
        "2025",
        "Harrison completed UCMR-5 (PFAS) monitoring with zero detections and met all regulatory standards for the year; the system holds a current unconditional Ohio EPA license."
      ]
    ],
    "treat": "Groundwater from seven wells in the Great Miami (buried valley) Aquifer: four in the Harrison well field at 329 Thomas Lane, about a quarter mile north on State Street from State and Harrison Ave., and three more at 153 Harrison-Brookville Rd. in West Harrison, Indiana. Water is disinfected with…",
    "press": "Not published as a psi figure or pressure-zone map. The city's water page addresses pressure only to note that low household pressure is usually a failing home water softener…",
    "rate": {
      "g": 4.29,
      "n": "Effective 7/1/2025. Inside-city residential with a 5/8-inch meter: $13.91 monthly customer charge plus $4.29 per unit, where the rate sheet defines a unit as 1,000 gallons.…",
      "m": 31.07
    },
    "imp": [
      [
        "Lead (90th percentile)",
        "0.7",
        "ppb",
        "15 (AL)",
        "2025",
        "0 of 30 samples over the action level."
      ],
      [
        "Copper (90th percentile)",
        "0.454",
        "ppm",
        "1.3 (AL)",
        "2025",
        "0 of 30 samples over the action level. The CCR's table also prints 0.392 ppm in the adjacent 'individual results over…"
      ],
      [
        "Total chlorine",
        "1.10",
        "mg/L",
        "4 (MRDL)",
        "2025",
        "Range 0.4 to 1.10 mg/L."
      ],
      [
        "Total trihalomethanes (TTHM)",
        "16.2",
        "ug/L",
        "80",
        "2025",
        "Range 11.6 to 16.2 ug/L. Speciated as chloroform 7.1, bromodichloromethane 5.2, dibromochloromethane 3.2 and bromoform…"
      ],
      [
        "Fluoride",
        "1.04",
        "mg/L",
        "4",
        "2025",
        "Range 0.80 to 1.04 mg/L; natural plus fluoridation additive."
      ],
      [
        "Nitrate",
        "0.53",
        "mg/L",
        "10",
        "2025",
        "Well below the MCL despite a shallow, unconfined aquifer."
      ],
      [
        "Barium",
        "0.06",
        "mg/L",
        "2",
        "2022",
        "Monitored less than annually; most recent result carried forward."
      ],
      [
        "Beryllium",
        "0.06",
        "ug/L",
        "4",
        "2024",
        "Trace, far below the MCL."
      ],
      [
        "Dichlorobenzene",
        "0.03",
        "ug/L",
        "600",
        "2024",
        "Trace industrial organic, essentially at the detection floor."
      ],
      [
        "PFAS (UCMR-5 suite)",
        "not detected",
        "n/a",
        "unregulated…",
        "2025",
        "City completed UCMR-5 sampling with zero detections."
      ]
    ],
    "proj": [
      [
        "Reverse osmosis membrane softening plant",
        null,
        "2022",
        "completed",
        "1.5 MGD RO system with three membrane arrays and space for a fourth, plus chemical feed, a diesel generator and stormwater management work. Designed by…"
      ]
    ],
    "plan": [],
    "stress": "Ohio EPA rates the Harrison well fields as having HIGH susceptibility to contamination: a shallow water table, no confining layer between the ground surface and the aquifer, and known potential contaminant sources sitting inside the city's wellhead protection areas. The CCR is explicit that this describes potential, not actual…",
    "sew": {
      "s": "Harrison runs its own wastewater treatment plant (Wastewater Department, 10999 Campbell Rd.), which city utilities pages describe as having an average daily design flow of about 2.3 MGD and being supported by six wastewater pump stations across the community; treated effluent discharges to the Whitewater River. Sewer charges are…",
      "st": "No stormwater utility fee or storm system data is published. The city's sewer pages only explain the distinction, calling storm sewers 'storm collection systems' that carry rainfall to a creek, river or detention basin. This is a small system that publishes…"
    },
    "fun": [
      "Three of the seven wells that supply this Ohio city sit in another state - at 153 Harrison-Brookville Rd. in West Harrison, Indiana.",
      "Harrison's emergency backup water supply is also out of state: an interconnection with Tri-Township Water Corporation in Bright, Indiana.",
      "The city's 2025 PFAS monitoring under the federal UCMR-5 rule came back with zero detections.",
      "Harrison built its own reverse-osmosis plant rather than buy softer water: since 2022 the tap water leaves the plant at 8 grains per gallon with iron non-detectable, and the city now tells residents that low pressure at…"
    ],
    "src": {
      "history": [
        "https://www.harrisonohio.gov/210/Water",
        "https://fishbeck.com/projects/city-of-harrison-water-softening-improvements-design-and-construction",
        "https://www.harrisonohio.gov/DocumentCenter/View/7431/Harrison-CCR-2025"
      ],
      "treatment": [
        "https://www.harrisonohio.gov/DocumentCenter/View/7431/Harrison-CCR-2025",
        "https://www.harrisonohio.gov/210/Water",
        "https://fishbeck.com/projects/city-of-harrison-water-softening-improvements-design-and-construction"
      ],
      "pressure": [
        "https://www.harrisonohio.gov/210/Water"
      ],
      "rates": [
        "https://www.harrisonohio.gov/DocumentCenter/View/6437",
        "https://www.harrisonohio.gov/210/Water"
      ],
      "impurities": [
        "https://www.harrisonohio.gov/DocumentCenter/View/7431/Harrison-CCR-2025"
      ],
      "projects": [
        "https://fishbeck.com/projects/city-of-harrison-water-softening-improvements-design-and-construction",
        "https://www.harrisonohio.gov/210/Water"
      ],
      "water_stress": [
        "https://www.harrisonohio.gov/DocumentCenter/View/7431/Harrison-CCR-2025"
      ],
      "sewer": [
        "https://www.harrisonohio.gov/206/Sewer",
        "https://www.harrisonohio.gov/Directory.aspx?did=20",
        "https://www.harrisonohio.gov/205/Utilities"
      ],
      "fun_facts": [
        "https://www.harrisonohio.gov/DocumentCenter/View/7431/Harrison-CCR-2025",
        "https://www.harrisonohio.gov/210/Water"
      ]
    }
  },
  "zips_served": [
    {
      "zip": "45030",
      "share": 0.5778,
      "dominant": true
    },
    {
      "zip": "45053",
      "share": 0.2133,
      "dominant": false
    }
  ],
  "photo": {
    "url": "/photos/OH3100812.jpg",
    "caption": "Broadway Street in downtown Harrison, Ohio",
    "credit": "w_lemay",
    "license": "CC0"
  },
  "url": "https://crackedbuckeye.com/water/OH3100812/",
  "api": "https://crackedbuckeye.com/api/water/OH3100812.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), \"Harrison City · OH3100812\", https://crackedbuckeye.com/water/OH3100812/, built 2026-09-16, accessed [date].",
  "schema": "https://crackedbuckeye.com/api/schema.json"
}