{
  "type": "water",
  "pwsid": "OH8400412",
  "name": "Marietta City",
  "county": "Washington",
  "population": 18707,
  "producer": true,
  "source_class": "groundwater",
  "label": "Ohio/Muskingum River valley sand-and-gravel aquifer (own wells)",
  "bodies": [],
  "intakes": [],
  "wells": 7,
  "aquifer": "Ohio River valley aquifer (shallow sand-and-gravel wells near Ohio/Muskingum confluence)",
  "notes": "Marietta draws from 7 wells in a shallow (<30 ft) sand-and-gravel aquifer along the Ohio/Muskingum River confluence; recent news coverage highlights contamination risk from nearby oil/gas injection wells threatening this aquifer.",
  "urls": [
    "https://www.mariettaoh.net/services/water_treatment/index.php",
    "https://ohiocapitaljournal.com/2026/07/14/the-precipice-of-an-emergency-marietta-residents-worry-drinking-water-could-become-contaminated/"
  ],
  "chain": [
    "OH8400412"
  ],
  "plants": [
    {
      "n": "Marietta Water Treatment Plant",
      "a": "Marietta, OH 45750 (town center estimate; specific well field address not confirmed)",
      "la": 39.4145,
      "lo": -81.4548,
      "pt": "approximate",
      "wb": "Ohio and Muskingum River valley sand-and-gravel aquifer",
      "src": "Seven active wells drawing from the sand-and-gravel aquifer along the Ohio/Muskingum River valleys near Marietta",
      "cls": "groundwater",
      "in": [
        {
          "n": "Ohio/Muskingum River confluence well field",
          "wb": "Ohio River valley sand-and-gravel aquifer (shallow floodplain deposits over sand and gravel near the Ohio/Muskingum confluence)",
          "role": "primary",
          "src": "All 7 active city wells draw from shallow floodplain sand-and-gravel deposits near the Ohio/Muskingum confluence; Ohio EPA rates the source highly susceptible to contamination. (7 wells)",
          "la": 39.4145,
          "lo": -81.4548,
          "pt": "plant",
          "sh": 100,
          "wells": [
            "Well 1",
            "Well 2",
            "Well 4R",
            "Well 5",
            "Well 7",
            "Well 8",
            "Well 9"
          ]
        }
      ]
    }
  ],
  "facts": {
    "hist": [
      [
        "1986",
        "Tetrachloroethylene (PCE) first detected in the city's sand-and-gravel well-field aquifer. Interceptor well #1 has been pumped and aerated continuously ever since to contain and strip PCE out of the…"
      ],
      [
        "2015",
        "In September 2015 Ohio EPA's Drinking Water Source Assessment rated Marietta's groundwater source HIGH susceptibility to contamination, citing the aquifer's shallow depth (less than 30 feet below…"
      ],
      [
        "2019-2020",
        "ODNR's Division of Oil and Gas Resource Management investigated and confirmed that brine waste from the Redbird #4 Class II injection well migrated underground, reaching oil and gas production wells…"
      ],
      [
        "2022",
        "A large section of 8- and 10-inch water main on Glendale Extension was replaced from Brentwood Drive to Swaney Court and returned to service."
      ],
      [
        "2023",
        "Construction began in July on a new reverse-osmosis water treatment plant at the former Plant 2 site, to replace the city's aging lime-and-soda-ash softening plants. Ohio EPA awarded the project $10…"
      ],
      [
        "2026",
        "On July 1-2, four Washington County Class II injection wells — Redbird No. 4 and No. 5, American Growers No. 1 and Nichols No. 1-A — stopped operating amid brine-migration concerns."
      ]
    ],
    "treat": "Seven production wells in a shallow sand-and-gravel aquifer along the Ohio/Muskingum River valley feed a plant that is staffed 24 hours a day, seven days a week and runs more than 600 water samples a month. Treatment is lime softening plus sodium hexametaphosphate for corrosion control, which EPA…",
    "press": "Not published. No system psi figure appears in the 2025 CCR, the February 2026 utility rate book, or the city's water treatment pages.",
    "rate": {
      "g": 11.39,
      "n": "Bimonthly billing, consumption metered in 100-cubic-foot increments (100 cu ft = 748 gal). Inside-city water, per the rate book revised February 9, 2026: $8.52 per 100 cu ft on…",
      "m": 56.95
    },
    "imp": [
      [
        "Total Trihalomethanes (TTHM)",
        "48.4 (range…",
        "ug/L",
        "80",
        "2025",
        "Disinfection byproduct; no violation."
      ],
      [
        "Haloacetic Acids (HAA5)",
        "5.7 (range…",
        "ug/L",
        "60",
        "2025",
        "Disinfection byproduct; no violation."
      ],
      [
        "Total Chlorine",
        "1.2 (range…",
        "mg/L",
        "MRDL = 4",
        "2025",
        "Residual disinfectant."
      ],
      [
        "Nitrate",
        "1.69",
        "mg/L",
        "10",
        "2025",
        "Fertilizer runoff, septic leaching, natural deposits."
      ],
      [
        "Fluoride",
        "0.98 (range…",
        "mg/L",
        "4",
        "2025",
        "Naturally occurring plus fluoridation additive."
      ],
      [
        "Barium",
        "0.012",
        "mg/L",
        "2",
        "2025",
        "Drilling wastes, metal refineries, natural deposits."
      ],
      [
        "Lead (90th percentile)",
        "0.00",
        "ug/L",
        "15 ppb action…",
        "2024",
        "All 30 sampled taps non-detect; 0 of 30 over the action level."
      ],
      [
        "Copper (90th percentile)",
        "0.01",
        "mg/L",
        "1.3 ppm action…",
        "2024",
        "0 of 30 taps over the action level."
      ],
      [
        "PFOA",
        "0.0052",
        "ug/L",
        "0.004 ug/L (4…",
        "2024",
        "5.2 ppt. Below the Ohio EPA action level in force when sampled, but above the 4 ppt federal MCL that becomes…"
      ],
      [
        "PFOS",
        "0.0056",
        "ug/L",
        "0.004 ug/L (4…",
        "2024",
        "5.6 ppt; same status as PFOA above."
      ]
    ],
    "proj": [
      [
        "Reverse osmosis water treatment plant (4.5 MGD, expandable to 6 MGD)",
        35000000,
        "2023",
        "under construction",
        "Broke ground July/August 2023 at the former Plant 2 site to replace the city's aging lime-and-soda-ash softening plants, which will then be demolished. Mayor…"
      ],
      [
        "Glendale Extension water main replacement",
        null,
        "2022",
        "completed",
        "8- and 10-inch main replaced from Brentwood Drive to Swaney Court and returned to service."
      ],
      [
        "Well-field monitoring expansion",
        null,
        "2025",
        "under construction",
        "The city runs 7 production wells and roughly 20 monitoring wells near the Muskingum River, and is adding 3 more monitoring wells near the river and the…"
      ]
    ],
    "plan": [
      [
        "Water main replacement capital improvement plan",
        220000000,
        "2025",
        "planned",
        "Reported by the Marietta Times in September 2025: a $220 million plan to replace more than 26 miles of water main over coming decades, with anticipated…"
      ],
      [
        "Brine-plume containment / remediation in the Muskingum valley aquifer",
        null,
        "2026",
        "needed",
        "No funded project exists. Marietta College professor David Jeffery estimated that cleanup to keep radioactive brine from reaching aquifers or the surface would…"
      ]
    ],
    "stress": "High. Ohio EPA's September 2015 source assessment rates the shallow (<30 ft) sand-and-gravel aquifer HIGH susceptibility to contamination, and the aquifer already hosts a PCE plume that has been actively contained since 1986. Since 2019 it has also faced brine migration from Class II oil and gas injection wells: ODNR confirmed waste from…",
    "sew": {
      "s": "The City of Marietta Water Reclamation (Wastewater) Treatment Plant is staffed 24 hours a day, seven days a week. Under Ordinance No. 167 (22-23) sewer is billed on water consumption or metered sewage in 100-cubic-foot increments: $8.90 per 100 cu ft plus a $24.60 administrative charge, bimonthly. Minimum inside-city sewer charge is…",
      "st": "Marietta operates a municipal separate storm sewer system (MS4) as defined in its own codified ordinances, regulated under an NPDES storm water discharge permit, with construction-site stormwater governed by the Ohio EPA general permit for land disturbance.…"
    },
    "fun": [
      "Marietta has been fighting a PCE dry-cleaning-solvent plume in its well-field aquifer since 1986 by running interceptor well #1 nonstop, pumping and aerating the chemical out of the ground.",
      "Parking is banned within 300 feet of any city drinking water well; the production wells sit on Linwood Avenue next to the Marietta Bantam Baseball Fields, and ballplayers are told to park at the Marietta Boat Ramp or…",
      "A 2026 investigation found that brine waste from a Class II injection well roughly two miles from the city's drinking water aquifer had already travelled about five miles underground into 28 oil and gas wells, with…",
      "The city is replacing its aging lime-and-soda-ash softening plants with a 4.5 MGD reverse osmosis plant, expandable to 6 MGD, aimed at near-total PFAS removal — funded partly by $10 million in Ohio EPA principal…",
      "Under Ohio Revised Code 4933.19 and city ordinance 927.99, tampering with a water meter or making an unmetered connection is a theft offense: $500 for a first offense, and up to $1,000 or three months in jail for a…"
    ],
    "src": {
      "history": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf",
        "https://www.farmanddairy.com/news/four-injection-wells-in-washington-county-shut-down-due-to-brine-migration/921237.html",
        "https://www.mariettatimes.com/news/2026/07/buckeye-environmental-network-calls-for-odnr-action-on-washington-county-injection-wells-after-brine-migration-concerns/",
        "https://www.wtap.com/2023/08/24/marietta-breaks-ground-new-water-treatment-plant/"
      ],
      "treatment": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf",
        "https://www.mariettaoh.net/services/water_treatment/index.php"
      ],
      "pressure": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf",
        "https://cms3.revize.com/revize/mariettaOH/Documents/Government/WaterBilling/WaterBookRevisedForITFebruary2_9_2026.pdf"
      ],
      "rates": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Government/WaterBilling/WaterBookRevisedForITFebruary2_9_2026.pdf"
      ],
      "impurities": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf"
      ],
      "projects": [
        "https://www.mariettaoh.net/services/water_treatment/index.php",
        "https://www.wtap.com/2025/06/17/marietta-water-plant-track-2026-completion/",
        "https://www.wtap.com/2026/02/26/marietta-seeks-state-loan-funding-water-treatment-plant-upgrades/",
        "https://www.mariettatimes.com/news/2025/09/water-plant-takes-shape-city-expands-well-monitoring/"
      ],
      "planned": [
        "https://www.mariettatimes.com/news/2025/09/water-plant-takes-shape-city-expands-well-monitoring/",
        "https://ohiocapitaljournal.com/2026/07/14/the-precipice-of-an-emergency-marietta-residents-worry-drinking-water-could-become-contaminated/",
        "https://www.yahoo.com/news/us/articles/precipice-emergency-marietta-residents-worry-075508615.html",
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf"
      ],
      "water_stress": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf",
        "https://www.farmanddairy.com/news/four-injection-wells-in-washington-county-shut-down-due-to-brine-migration/921237.html",
        "https://www.yahoo.com/news/us/articles/precipice-emergency-marietta-residents-worry-075508615.html",
        "https://www.mariettatimes.com/news/2025/09/water-plant-takes-shape-city-expands-well-monitoring/"
      ],
      "sewer": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Government/WaterBilling/WaterBookRevisedForITFebruary2_9_2026.pdf",
        "https://codelibrary.amlegal.com/codes/marietta/latest/marietta_oh/0-0-0-31960"
      ],
      "fun_facts": [
        "https://cms3.revize.com/revize/mariettaOH/Documents/Services/Water%20Treatment/Consumer%20Confidence%20Report/CCR2025.pdf",
        "https://cms3.revize.com/revize/mariettaOH/Documents/Government/WaterBilling/WaterBookRevisedForITFebruary2_9_2026.pdf",
        "https://www.yahoo.com/news/us/articles/precipice-emergency-marietta-residents-worry-075508615.html",
        "https://www.mariettaoh.net/services/water_treatment/index.php"
      ]
    }
  },
  "zips_served": [
    {
      "zip": "45750",
      "share": 0.533,
      "dominant": true
    }
  ],
  "photo": {
    "url": "/photos/OH8400412.jpg",
    "caption": "The Ohio River at Marietta, Ohio, July 2016",
    "credit": "pasa47",
    "license": "CC BY 2.0"
  },
  "url": "https://crackedbuckeye.com/water/OH8400412/",
  "api": "https://crackedbuckeye.com/api/water/OH8400412.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), \"Marietta City · OH8400412\", https://crackedbuckeye.com/water/OH8400412/, built 2026-09-16, accessed [date].",
  "schema": "https://crackedbuckeye.com/api/schema.json"
}