{
  "type": "water",
  "pwsid": "OH2501303",
  "name": "Gahanna City",
  "county": "Franklin",
  "population": 33258,
  "producer": false,
  "source_class": "river",
  "label": "Scioto River (Griggs & O'Shaughnessy), Hoover Reservoir on Big Walnut Ck, plus wells",
  "bodies": [
    "Scioto River",
    "Griggs Reservoir",
    "O'Shaughnessy Reservoir",
    "Hoover Reservoir",
    "Big Walnut Creek",
    "Alum Creek"
  ],
  "intakes": [],
  "wells": null,
  "aquifer": "",
  "notes": "Gahanna buys 100% of its finished water from the City of Columbus (SDWIS code SWP, sole buys_from entry, zero own wells/intakes); ultimate source traces to Columbus's Scioto River / Hoover Reservoir (Big Walnut & Alum Creek) supply.",
  "urls": [
    "https://www.columbus.gov/Services/Public-Utilities/Water-Sewer-and-Stormwater/Water-Treatment"
  ],
  "chain": [
    "OH2501303",
    "OH2504412"
  ],
  "plants": [],
  "facts": {
    "hist": [
      [
        "1849",
        "Gahanna was founded along Big Walnut Creek, the waterway that still runs through the city."
      ],
      [
        "2026",
        "Columbus raised Gahanna's wholesale water rate 18% and its sewage treatment rate 8%; Gahanna absorbed part and passed through an overall 6.14% increase."
      ],
      [
        "2026",
        "Extensive rainfall on and around Saturday, August 22 flooded parts of Gahanna, damaging homes; Governor DeWine sought FEMA assistance for recovery."
      ]
    ],
    "treat": "Gahanna operates no plant and no wells: it buys 100% finished water from Columbus, which runs three treatment plants and describes a 'multi-barrier approach.' Per SDWIS the ultimate sources are the Scioto River (Griggs and O'Shaughnessy) and Hoover Reservoir on Big Walnut Creek.",
    "press": "Not published; Gahanna's Public Utilities page gives no psi or pressure-zone figures, and delivery pressure is set by the Columbus system feeding it.",
    "rate": {
      "g": 11.74,
      "n": "2026 residential water: $10.62/1,000 gal operations plus $1.12 capital. Sanitary sewer adds $12.49/1,000 gal. Overall utility increase 6.14%.",
      "m": 46.96
    },
    "imp": [],
    "proj": [],
    "plan": [],
    "stress": "Gahanna has no source of its own — 100% of supply is purchased finished water from Columbus, so both reliability and cost track the Columbus Scioto River/Hoover Reservoir system. In August 2026 extensive rainfall flooded parts of the city, prompting a state request for federal disaster aid.",
    "sew": {
      "s": "Gahanna owns and maintains its own sanitary collection system and runs a CMOM program, but sends all wastewater to Columbus for treatment at the Jackson Pike and Southerly plants, which serve Columbus plus about 25 contracting suburban communities. 2026 rate: $12.49/1,000 gal.",
      "st": "Separate storm sewer infrastructure owned by the city and managed by its Engineering Department; stormwater is billed within the utility rates. Extensive August 2026 rainfall caused widespread property damage."
    },
    "fun": [
      "Gahanna draws no water of its own at all — 100% of its supply is purchased finished from Columbus, and all of its sewage goes back to Columbus for treatment.",
      "When Columbus raised Gahanna's wholesale water rate 18% for 2026, the city absorbed part of the hit and passed through a 10% increase instead.",
      "A Gahanna household using 4,000 gallons a month saw its combined water, sewer and stormwater bill rise $7.46 in 2026."
    ]
  },
  "zips_served": [
    {
      "zip": "43230",
      "share": 0.5737,
      "dominant": true
    },
    {
      "zip": "43054",
      "share": 0.0773,
      "dominant": false
    }
  ],
  "photo": {
    "url": "/photos/OH2501303.jpg",
    "caption": "Hoover Reservoir on Big Walnut Creek near Columbus, Ohio, one of Gahanna's source reservoirs",
    "credit": "AddisWang",
    "license": "CC BY-SA 4.0"
  },
  "url": "https://crackedbuckeye.com/water/OH2501303/",
  "api": "https://crackedbuckeye.com/api/water/OH2501303.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), \"Gahanna City · OH2501303\", https://crackedbuckeye.com/water/OH2501303/, built 2026-09-16, accessed [date].",
  "schema": "https://crackedbuckeye.com/api/schema.json"
}