{
  "type": "water",
  "pwsid": "OH8000314",
  "name": "Marysville City",
  "county": "Union",
  "population": 25571,
  "producer": true,
  "source_class": "river",
  "label": "Mill Creek via Marysville Reservoir (Raymond Rd) + wells",
  "bodies": [
    "Mill Creek",
    "Marysville Reservoir"
  ],
  "intakes": [
    "Marysville, Creek",
    "Marysville, Reservoir"
  ],
  "wells": 3,
  "aquifer": "",
  "notes": "An inflatable dam/pump station diverts Mill Creek flow into the above-ground Marysville Reservoir on Raymond Rd (built 2008-09, 1.39 billion gal capacity); the city also runs ~200-ft deep groundwater wells as a supplemental/backup source, matching SDWIS's SW code with 3 wells listed as backup.",
  "urls": [
    "https://www.marysvilleohio.org/130/Water",
    "https://www.marysvilleohio.org/Archive/ViewFile/Item/6463"
  ],
  "chain": [
    "OH8000314"
  ],
  "plants": [
    {
      "n": "Marysville Water Treatment Plant",
      "a": "18000 Raymond Rd, Marysville, OH 43040",
      "la": 40.262,
      "lo": -83.3995,
      "pt": "approximate",
      "wb": "Mill Creek, stored in the Marysville Upground Reservoir",
      "src": "Mill Creek water pumped into and stored in the Marysville Upground Reservoir on Raymond Road, plus groundwater from wells approximately 200 feet deep, treated at the plant on the reservoir site",
      "cls": "river",
      "in": [
        {
          "n": "Mill Creek pump station intake",
          "wb": "Mill Creek (Scioto River tributary)",
          "role": "primary",
          "src": "Inflatable dam and 40 MGD pump station on Creekview Drive that lifts Mill Creek water into the Raymond Road reservoir",
          "la": 40.2681,
          "lo": -83.3847,
          "pt": "pump_station"
        },
        {
          "n": "Marysville Upground Reservoir",
          "wb": "Off-stream (upground) reservoir on Raymond Road, filled from Mill Creek",
          "role": "storage",
          "src": "Surface water pumped from Mill Creek and stored in the 171-acre, 40-ft-deep Marysville Upground Reservoir on Raymond Road (built 2008-09, 1.39 billion gal capacity) before treatment",
          "la": 40.2639,
          "lo": -83.4036,
          "pt": "approximate"
        },
        {
          "n": "City well field",
          "wb": "Local sand-and-gravel aquifer near Marysville",
          "role": "secondary",
          "src": "Three city wells, roughly 200 feet deep, whose water is blended with treated reservoir water at the plant",
          "la": 40.262,
          "lo": -83.3995,
          "pt": "approximate"
        },
        {
          "n": "City Well Field (Wells 3, 5, 6)",
          "wb": "Unconsolidated glacial sand-and-gravel aquifer",
          "role": "secondary",
          "src": "Three high-capacity groundwater wells about 200 feet deep supplementing the Mill Creek/reservoir surface supply (3 wells · approximately 200 ft)",
          "la": 40.262,
          "lo": -83.3995,
          "pt": "plant",
          "wells": [
            "Well 3",
            "Well 5",
            "Well 6"
          ]
        }
      ]
    }
  ],
  "facts": {
    "hist": [
      [
        "1819",
        "Town laid out along Mill Creek by Samuel W. Culbertson, who named it for his daughter Mary."
      ],
      [
        "2004",
        "A Wastewater Master Study found the existing plant aged and unable to expand, and recommended building a new treatment plant — leading to the Water Reclamation Facility on Beecher Gamble Road."
      ],
      [
        "2008-09",
        "The Marysville Upground Reservoir on Raymond Road was constructed in 2008 and put into service in 2009 (1.39 billion gallon capacity), fed by an inflatable dam and pump station on Creekview Drive…"
      ],
      [
        "2023",
        "A new Water Treatment Plant at 18000 Raymond Road was commissioned in January 2023, treating an average of about 3.6 MGD."
      ],
      [
        "2024",
        "Ohio EPA performed an updated source water assessment of the Mill Creek and well field protection areas."
      ],
      [
        "2025",
        "Filter #7 commissioned at the water treatment plant; the city purchased property for a future water treatment plant and completed several water main replacements."
      ]
    ],
    "treat": "Blended surface water (Mill Creek, diverted by the Creekview Drive inflatable dam and pump station into the 1.39-billion-gallon Raymond Road upground reservoir) and groundwater from city-owned wells. At the 2023 plant at 18000 Raymond Road the train is coagulant addition, sedimentation, lime and…",
    "press": "Not published. No psi figures or pressure-zone description appear in the 2025 CCR, on the city's Water or Water Quality pages, or in the utility rate ordinance.",
    "rate": {
      "g": 9.02,
      "n": "Codified Ordinance Sec. 931.02, effective January 1, 2026, charges per 100 cubic feet (1 ccf = 748 gallons) in four tiers: first 200 cf at $11.50/ccf (= $15.37 per 1,000 gal)…",
      "m": null
    },
    "imp": [
      [
        "TTHM (Total Trihalomethanes)",
        "67.5",
        "ug/L",
        "80 (MCL)",
        "2025",
        "Highest locational running annual average across four sites; range of individual results 14.2-58.9 ug/L. No violation."
      ],
      [
        "HAA5 (Haloacetic Acids)",
        "21.5",
        "ug/L",
        "60 (MCL)",
        "2025",
        "Highest locational running annual average; range of individual results 5.4-25.1 ug/L. No violation."
      ],
      [
        "Lead (90th percentile, customer tap)",
        "<0.8",
        "ppb",
        "15 (action…",
        "2025",
        "1 of 60 samples was above the 15 ppb action level, at 29.2 ppb; the 90th percentile stayed under the action level, so…"
      ],
      [
        "Copper (90th percentile, customer tap)",
        "<0.14",
        "ppm",
        "1.3 (action…",
        "2025",
        "0 of 60 samples exceeded the action level; range <0.0-0.14 ppm."
      ],
      [
        "Turbidity",
        "0.28",
        "NTU",
        "0.3 NTU in 95%…",
        "2025",
        "Highest recorded reading; range 0.03-0.28 NTU and 100% of samples met the standard."
      ],
      [
        "Total Organic Carbon",
        "2.51",
        "ppm",
        "treatment…",
        "2025",
        "Range 2.00-3.80 ppm. Naturally present in the environment."
      ],
      [
        "Nitrate",
        "1.46",
        "ppm",
        "10 (MCL)",
        "2025",
        "Range 0.99-1.46 ppm — well below the MCL despite an agricultural watershed."
      ],
      [
        "Fluoride",
        "1.03",
        "ppm",
        "4 (MCL)",
        "2025",
        "Added to promote strong teeth."
      ],
      [
        "Arsenic",
        "0.9",
        "ppb",
        "10 (MCL)",
        "2025",
        "Well below the MCL."
      ],
      [
        "Barium",
        "0.0097",
        "ppm",
        "2 (MCL)",
        "2025",
        "Erosion of natural deposits, drilling waste, metal refineries."
      ]
    ],
    "proj": [
      [
        "Marysville Water Treatment Plant (18000 Raymond Rd)",
        null,
        "2023",
        "completed",
        "Commissioned January 2023; ozone-based train treating an average of about 3.6 MGD. Cost not published in sources reviewed."
      ],
      [
        "Filter #7 at the Water Treatment Plant",
        null,
        "2025",
        "completed",
        "Listed among the 2025 water system improvements in the CCR. No cost published."
      ],
      [
        "Water main replacement projects",
        null,
        "2025",
        "completed",
        "Several main replacements completed throughout the city in 2025 per the CCR. No costs published."
      ],
      [
        "Marysville Upground Reservoir and Creekview Drive inflatable dam/pump station",
        null,
        "2008-2009",
        "completed",
        "1.39 billion gallon upground reservoir on Raymond Road, constructed 2008 and in service 2009. Cost not published in sources reviewed."
      ],
      [
        "Water Reclamation Facility, Beecher Gamble Rd",
        null,
        "",
        "completed",
        "Built following the 2004 Wastewater Master Study; treats an average 4.59 MGD. Cost not published in sources reviewed."
      ]
    ],
    "plan": [
      [
        "Future water treatment plant (site acquisition)",
        null,
        "2025",
        "planned",
        "The city purchased property for a future water treatment plant in 2025, per the CCR's list of water system improvements. No design, cost or construction date…"
      ]
    ],
    "stress": "Ohio EPA's 2024 source water assessment rates Marysville's supply as having 'moderately high susceptibility to contamination.' Mill Creek is a surface source with numerous potential contaminant sources along its banks; the protection areas around the creek and the well field include urbanized land and a moderate number of potential…",
    "sew": {
      "s": "City-owned Water Reclamation Facility on Beecher Gamble Road, built after the 2004 Wastewater Master Study and sited for future expansion; treats an average 4.59 MGD through roughly 182 miles of sewer line ranging from 6 to 60 inches, 19 lift stations and more than 2,618 manholes. No combined sewer overflows or consent decree appear in…",
      "st": "Separate stormwater utility under Sec. 937.18, charging $8.25 per ERU per month in 2026. Each residential parcel is billed one ERU; commercial and industrial ERUs are calculated from impervious area, with one ERU equal to 2,700 square feet of impervious…"
    },
    "fun": [
      "Marysville does not drink straight from Mill Creek: an inflatable dam and pump station on Creekview Drive diverts creek water through pipes into a 1.39-billion-gallon upground reservoir on Raymond Road, and the dam is…",
      "The reservoir was finished in 2008 but the city did not start drinking from it until fall 2009 — it took roughly a year to fill and bring online.",
      "The 2023 treatment plant runs ozone alongside lime-soda softening and chlorination, an unusually elaborate train for a city of 25,000.",
      "Marysville and Del-Co Water share an emergency interconnect that either can open during drought, a source failure, a line break, a fire, or a spell of unusually high demand.",
      "Atrazine, a row-crop herbicide, shows up in the finished water at 0.10 ppb against a 3 ppb limit — a fingerprint of the farmland that drains into Mill Creek."
    ],
    "src": {
      "history": [
        "https://www.marysvilleohio.org/186/Facilities",
        "https://www.marysvilleohio.org/113/Wastewater",
        "https://www.marysvilleohio.org/130/Water",
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729"
      ],
      "treatment": [
        "https://www.marysvilleohio.org/130/Water",
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729",
        "https://www.marysvilleohio.org/186/Facilities"
      ],
      "rates": [
        "https://www.marysvilleohio.org/DocumentCenter/View/2146/Utility-Rates",
        "https://www.marysvilleohio.org/434/Utility-Rates"
      ],
      "impurities": [
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729",
        "https://www.marysvilleohio.org/215/Water-Quality"
      ],
      "projects": [
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729",
        "https://www.marysvilleohio.org/130/Water",
        "https://www.marysvilleohio.org/186/Facilities",
        "https://www.marysvilleohio.org/113/Wastewater"
      ],
      "planned": [
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729"
      ],
      "water_stress": [
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729",
        "https://www.marysvilleohio.org/186/Facilities",
        "https://en.wikipedia.org/wiki/Marysville,_Ohio"
      ],
      "sewer": [
        "https://www.marysvilleohio.org/113/Wastewater",
        "https://www.marysvilleohio.org/DocumentCenter/View/2146/Utility-Rates",
        "https://marysvilleohio.org/DocumentCenter/View/290/Section-93718---Stormwater-Fees"
      ],
      "fun_facts": [
        "https://www.marysvilleohio.org/186/Facilities",
        "https://www.marysvilleohio.org/130/Water",
        "https://www.marysvilleohio.org/Archive/ViewFile/Item/6729",
        "https://en.wikipedia.org/wiki/Marysville,_Ohio"
      ]
    }
  },
  "zips_served": [
    {
      "zip": "43040",
      "share": 0.6893,
      "dominant": true
    },
    {
      "zip": "43064",
      "share": 0.3108,
      "dominant": true
    },
    {
      "zip": "43017",
      "share": 0.0009,
      "dominant": false
    },
    {
      "zip": "43015",
      "share": 0.0002,
      "dominant": false
    }
  ],
  "photo": {
    "url": "/photos/OH8000314.jpg",
    "caption": "Marysville, Ohio's water tower",
    "credit": "Pchcali",
    "license": "CC BY-SA 4.0"
  },
  "url": "https://crackedbuckeye.com/water/OH8000314/",
  "api": "https://crackedbuckeye.com/api/water/OH8000314.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), \"Marysville City · OH8000314\", https://crackedbuckeye.com/water/OH8000314/, built 2026-09-16, accessed [date].",
  "schema": "https://crackedbuckeye.com/api/schema.json"
}