{
  "type": "water",
  "pwsid": "OH1900714",
  "name": "Greenville City",
  "county": "Darke",
  "population": 13227,
  "producer": true,
  "source_class": "river",
  "label": "Greenville Creek (primary, ~78%) blended with 8 wells",
  "bodies": [
    "Greenville Creek",
    "Mud Creek"
  ],
  "intakes": [
    "Greenville Mud Creek",
    "Greenville Greenville Creek"
  ],
  "wells": 8,
  "aquifer": "local wells (east/south of treatment plant)",
  "notes": "About 78% of water comes from the Greenville Creek surface intake (Mud Creek is a tributary/alternate intake); the system switches more to its 8 wells when creek turbidity rises.",
  "urls": [
    "https://cityofgreenville.org/2180/Water",
    "https://www.greenvillewater.com/water-resources/greenville-water-treatment-plants"
  ],
  "chain": [
    "OH1900714"
  ],
  "plants": [
    {
      "n": "Greenville Water Treatment Plant",
      "a": "4160 State Route 502, Greenville, OH 45331",
      "wb": "Greenville Creek",
      "src": "Greenville Creek (primary, ~78%) blended with 8 wells",
      "cls": "river",
      "in": [
        {
          "n": "Greenville Creek intake",
          "wb": "Greenville Creek",
          "role": "primary",
          "src": "Main surface-water intake supplying the lime-softening plant on SR 502; provides about 78% of treated water in a normal year",
          "sh": 78
        },
        {
          "n": "Mud Creek intake",
          "wb": "Mud Creek (Greenville Creek tributary)",
          "role": "secondary",
          "src": "SDWIS-listed intake on Mud Creek near SR 502 in Greenville, used to supplement the Greenville Creek supply"
        },
        {
          "n": "East/south well field",
          "wb": "Groundwater",
          "role": "secondary",
          "src": "Eight active wells located east and south of the treatment plant; used more heavily when creek turbidity rises"
        },
        {
          "n": "East/South Well Field",
          "wb": "Shallow sand-and-gravel aquifer near Greenville Creek, protected by an overlying layer of low-permeability sediment",
          "role": "secondary",
          "src": "Eight wells sited east and south of the treatment plant on SR 502; drawn on when Greenville Creek runs turbid. No published coordinates or well depths. (8 wells)",
          "sh": 22,
          "wells": [
            "Well 1",
            "Well 2",
            "Well 3",
            "Well 4",
            "Well 5",
            "Well 7",
            "Well 8",
            "Well 9"
          ]
        }
      ]
    }
  ],
  "facts": {
    "hist": [
      [
        "1795",
        "The Treaty of Greenville was signed on August 3 at Fort Greenville, ending the Northwest Indian War; the city that grew on the site still calls itself 'The Treaty City' on the municipal seal printed…"
      ],
      [
        "1980",
        "The current water treatment facility was constructed at 4160 State Route 502 — a lime softening plant with a design average capacity of 4 million gallons per day and a maximum design flow of 6 MGD."
      ],
      [
        "2025",
        "City published its Lead Service Line Inventory under the federal Lead and Copper Rule Improvements and opened a lead service line replacement program with resident work-agreement forms."
      ],
      [
        "2025",
        "Tier 3 monitoring violation: the system did not monitor for total microcystins during the week of 5/18/2025-5/24/2025 as required by Ohio EPA. A sample was collected 5/29/2025 and the public notice…"
      ],
      [
        "2025",
        "System held an unconditioned license to operate and participated in the fifth round of UCMR 5 sampling, producing the city's first published PFAS results."
      ]
    ],
    "treat": "Lime softening plant built in 1980 at 4160 State Route 502, with a design average capacity of 4 MGD and a maximum design flow of 6 MGD; it currently produces an average of about 2.1 MGD. It treats a blend of Greenville Creek surface water — approximately two-thirds of the water treated — with…",
    "press": "Not published. No distribution pressure figure or pressure-zone map appears in the 2024 or 2025 CCRs, the Rules and Regulations for the Greenville Water System (2025), or any city…",
    "rate": {
      "g": 7.79,
      "n": "Ordinance 24-120, effective with 3/1/2026 billing. Greenville bills in 'billing units' of 100 cubic feet, which the city's own rate sheet equates to 750 gallons (the exact…",
      "m": 28.08
    },
    "imp": [
      [
        "Total Trihalomethanes (TTHM)",
        "57.6",
        "ppb",
        "80",
        "2025",
        "Range 13.4-84.5 ppb. The locational running annual average complies, but the highest single result exceeded the 80 ppb…"
      ],
      [
        "Lead (90th percentile)",
        "ND",
        "ppb",
        "15 (action…",
        "2025",
        "Range ND-25.0 ppb; 1 of 37 sites exceeded the action level, with one sample detected at 25 ppb. The 90th percentile is…"
      ],
      [
        "Nitrate",
        "3.84",
        "ppm",
        "10",
        "2025",
        "Range 0.10-3.84 ppm — about 38% of the MCL, consistent with an agricultural watershed. Up sharply from 2.26 ppm in 2024."
      ],
      [
        "Total Organic Carbon (TOC removal ratio)",
        "0.9",
        "ratio",
        "1 (treatment…",
        "2025",
        "Reported as an amount detected of 0.9 with a monthly range of ND-1.30. The CCR's own footnote states that a value below…"
      ],
      [
        "Haloacetic Acids (HAA5)",
        "14.1",
        "ppb",
        "60",
        "2025",
        "Range ND-19.8 ppb. Disinfection byproduct, comfortably under the MCL."
      ],
      [
        "Perfluorooctanesulfonic acid (PFOS)",
        "2.10",
        "ppt",
        "4.0",
        "2025",
        "Range ND-6.3 ppt, from UCMR 5 sampling. The average is about half the federal MCL adopted in 2024, but individual…"
      ],
      [
        "Perfluorohexanesulfonic acid (PFHxS)",
        "1.97",
        "ppt",
        "10 (hazard…",
        "2025",
        "Range ND-5.9 ppt. Regulated through EPA's mixture Hazard Index rather than an individual MCL."
      ],
      [
        "Chlorine",
        "1.24",
        "ppm",
        "4 (MRDL)",
        "2025",
        "Range 1.01-1.40 ppm. Water additive used to control microbes."
      ],
      [
        "Turbidity",
        "0.21",
        "NTU",
        "1 (treatment…",
        "2025",
        "100% of monthly samples met the limit in 2025 — an improvement on 2024, when a meter malfunction produced a recorded…"
      ],
      [
        "Sodium",
        "30.6",
        "ppm",
        "none…",
        "2025",
        "Relevant to anyone on a sodium-restricted diet; a byproduct of lime softening plus road salt in the watershed. Up from…"
      ]
    ],
    "proj": [
      [
        "Lead Service Line Replacement Program",
        null,
        "2025",
        "under construction",
        "City-run replacement following the Lead Service Line Inventory published in 2025 under the federal Lead and Copper Rule Improvements. Residents sign a work…"
      ]
    ],
    "plan": [
      [
        "Continued lead service line replacement",
        null,
        "",
        "planned",
        "Ongoing multi-year program following the 2025 inventory, on the federal Lead and Copper Rule Improvements timeline. No completion date or budget is published."
      ]
    ],
    "stress": "Ohio EPA's source water assessment rates the overall susceptibility of Greenville's system as HIGH. Because the system blends surface and ground water before distribution, the rating is set by the more susceptible source: the Greenville Creek surface intake, whose protection area is most susceptible to contamination from agricultural…",
    "sew": {
      "s": "City-owned oxidation ditch plant at 209 N Ohio Street, designed to provide preliminary, primary, secondary and advanced treatment with disinfection of the effluent. Design flow 3.5 MGD, peak hour flow 6.02 MGD, and 7.21 MGD design storm flow; average daily flow is about 2.2 million gallons. Approximately 0.257 dry tons of biosolids are…",
      "st": "The city operates a storm water utility and bills a separate storm charge of $3.10 per Equivalent Residential Unit per month under Ordinance 24-120, effective with 3/1/2026 billing. It appears as a line on every residential utility bill and is included in the…"
    },
    "fun": [
      "Greenville's drinking water intake and its sewage outfall are on the same stream: the water plant draws from Greenville Creek at 4160 State Route 502, and the wastewater plant discharges treated effluent back into…",
      "In 1805 Tecumseh and his brother Tenskwatawa, the Shawnee Prophet, founded a village at the confluence of Greenville and Mud creeks — temporary home to about 800 Shawnee — and kept signal fires burning in protest of the…",
      "The city bills water in units of 100 cubic feet and tells customers on its own rate sheet that this equals 750 gallons; the exact figure is about 748, so Greenville rounds a couple of gallons a month in the customer's…",
      "Greenville is a hybrid system: roughly two-thirds of what it treats is creek water, but when the creek turns muddy the plant leans on eight wells, so the same tap can swing between a surface and a groundwater supply…",
      "The city's fluoride level averages 0.26 ppm, well under the 0.7 ppm recommended for dental health — unusually low for a system that softens with lime."
    ],
    "src": {
      "history": [
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report",
        "https://cityofgreenville.org/2180/Water",
        "https://cityofgreenville.org/2256/Lead-Service-Line-Replacement",
        "https://en.wikipedia.org/wiki/Treaty_of_Greenville"
      ],
      "treatment": [
        "https://cityofgreenville.org/2180/Water",
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report",
        "https://www.cityofgreenville.org/DocumentCenter/View/2589/2024-Consumer-Confidence-Report"
      ],
      "pressure": [
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report",
        "https://www.cityofgreenville.org/DocumentCenter/View/2630/Rules-and-Regulations-for-Greenville-Water-System-2025"
      ],
      "rates": [
        "https://www.cityofgreenville.org/DocumentCenter/View/1865/Utility-Rates-Legislation-PDF"
      ],
      "impurities": [
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report",
        "https://www.cityofgreenville.org/DocumentCenter/View/2589/2024-Consumer-Confidence-Report"
      ],
      "projects": [
        "https://cityofgreenville.org/2256/Lead-Service-Line-Replacement",
        "https://cityofgreenville.org/DocumentCenter/View/2671/Lead-Service-Line-Inventory-2025",
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report"
      ],
      "planned": [
        "https://cityofgreenville.org/2256/Lead-Service-Line-Replacement",
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report"
      ],
      "water_stress": [
        "https://cityofgreenville.org/DocumentCenter/View/2705/2025-Consumer-Confidence-Report",
        "https://cityofgreenville.org/2180/Water"
      ],
      "sewer": [
        "https://cityofgreenville.org/2180/Water",
        "https://www.cityofgreenville.org/DocumentCenter/View/1865/Utility-Rates-Legislation-PDF"
      ],
      "fun_facts": [
        "https://cityofgreenville.org/2180/Water",
        "https://www.hmdb.org/m.asp?m=28646",
        "https://en.wikipedia.org/wiki/Treaty_of_Greenville",
        "https://www.cityofgreenville.org/DocumentCenter/View/1865/Utility-Rates-Legislation-PDF"
      ]
    }
  },
  "zips_served": [
    {
      "zip": "45331",
      "share": 0.5838,
      "dominant": true
    }
  ],
  "photo": {
    "url": "/photos/OH1900714.jpg",
    "caption": "Postcard of the Broadway Bridge over Greenville Creek in Greenville, Ohio, circa 1920",
    "credit": "Unknown authorUnknown author",
    "license": "Public domain"
  },
  "url": "https://crackedbuckeye.com/water/OH1900714/",
  "api": "https://crackedbuckeye.com/api/water/OH1900714.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), \"Greenville City · OH1900714\", https://crackedbuckeye.com/water/OH1900714/, built 2026-09-16, accessed [date].",
  "schema": "https://crackedbuckeye.com/api/schema.json"
}