{
  "type": "water",
  "pwsid": "OH3000111",
  "name": "Cambridge, City Of",
  "county": "Guernsey",
  "population": 10520,
  "producer": true,
  "source_class": "river",
  "label": "Wills Creek via Cambridge Reservoir + Wills Creek direct intake",
  "bodies": [
    "Wills Creek",
    "Cambridge Reservoir"
  ],
  "intakes": [
    "Cambridge Reservoir",
    "Wills Creek"
  ],
  "wells": 0,
  "aquifer": "",
  "notes": "Two named own intakes confirm the SDWIS hypothesis: an off-stream Cambridge Reservoir plus a direct Wills Creek intake (both surface water, not groundwater); Senecaville (Seneca) Lake, further upstream in the Wills Creek watershed, is not the utility's own supply source.",
  "urls": [
    "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf",
    "https://dam.assets.ohio.gov/image/upload/epa.ohio.gov/Portals/28/documents/habs/PWSLakes.pdf"
  ],
  "chain": [
    "OH3000111"
  ],
  "plants": [
    {
      "n": "Cambridge Water Treatment Plant",
      "a": "Cambridge, Guernsey County, OH 43725",
      "la": 40.0322,
      "lo": -81.5468,
      "pt": "approximate",
      "wb": "Wills Creek / Cambridge Reservoir",
      "src": "Wills Creek, impounded in the Cambridge (Wills Creek) Reservoir northwest of the city, with a supplemental direct Wills Creek intake",
      "cls": "river",
      "in": [
        {
          "n": "Cambridge Reservoir intake",
          "wb": "Cambridge (Wills Creek) Reservoir",
          "role": "primary",
          "src": "Circa-1916 intake structure at the Cambridge city reservoir northwest of downtown, which is filled from Wills Creek",
          "la": 40.0054,
          "lo": -81.554,
          "pt": "intake"
        },
        {
          "n": "Wills Creek direct intake",
          "wb": "Wills Creek",
          "role": "secondary",
          "src": "Raw-water pumping station on the west side of I-77 that draws directly from Wills Creek and delivers supplemental water to the reservoir/plant",
          "la": 40.028,
          "lo": -81.555,
          "pt": "approximate"
        }
      ]
    }
  ],
  "facts": {
    "hist": [
      [
        "1798",
        "A ferry was established where Zane's Trace crossed Wills Creek, at the site that became Cambridge."
      ],
      [
        "1803",
        "The first bridge authorized by the legislature of the Northwest Territory was built across Wills Creek here."
      ],
      [
        "1998",
        "The Cambridge area experienced massive flooding in late June."
      ],
      [
        "2005",
        "Ohio EPA completed the source water assessment still cited in the city's CCR, finding the Wills Creek supply susceptible to leaking underground storage facilities, oil and gas wells, mining runoff…"
      ],
      [
        "2023",
        "Ohio BUILDS Round 5 awarded the city $3,834,975 in July for waterline and service improvements including lead line removal and elimination of dead-end mains."
      ],
      [
        "2024",
        "The city held an unconditional Ohio EPA license to operate, reported no monitoring, reporting or treatment technique violations, and recorded zero positive total coliform results on 120 samples."
      ]
    ],
    "treat": "The 2024 CCR does not publish a step-by-step treatment train. What it documents is a conventional surface-water plant at 1700 Burgess Ave operating under the turbidity treatment technique (100% of 2024 samples met the standard; highest reading 0.22 NTU) and TOC removal requirements, with fluoride…",
    "press": "No system-wide psi figure is published. The CCR's boil-order FAQ notes that Ohio EPA recommends issuing a boil order any time distribution pressure falls below 20 psi — a…",
    "rate": {
      "g": null,
      "n": "Cambridge does not publish its water or sewer rate schedule online. The Utilities Office page states only that rates are available upon request; the office is at 828 Wheeling…",
      "m": null
    },
    "imp": [
      [
        "Total Trihalomethanes (TTHM)",
        "63.3",
        "ppb",
        "80 (MCL)",
        "2024",
        "Range 35.5-91.3 ppb across sites — individual samples exceeded 80 ppb even though the compliance average did not. No…"
      ],
      [
        "Haloacetic Acids (HAA5)",
        "51.2",
        "ppb",
        "60 (MCL)",
        "2024",
        "Range 27.6-59.2 ppb; running close to the limit. No violation."
      ],
      [
        "Lead (90th percentile)",
        "1.04",
        "ppb",
        "15 (action…",
        "2024",
        "Sampled at customer taps 6/1/24-9/3/24; 0 of 60 samples exceeded the action level; range 0-3.36 ppb."
      ],
      [
        "Copper (90th percentile)",
        "0.0372",
        "ppm",
        "1.3 (action…",
        "2024",
        "0 of 60 samples exceeded the action level; range 0.00484-0.0659 ppm."
      ],
      [
        "Nitrate",
        "0.13",
        "ppm",
        "10 (MCL)",
        "2024",
        "Range 0-0.13 ppm; fertilizer runoff and natural deposits."
      ],
      [
        "Fluoride",
        "1.01",
        "ppm",
        "4 (MCL)",
        "2024",
        "Range 0.80-1.25 ppm; added for dental health."
      ],
      [
        "Barium",
        "0.042",
        "ppm",
        "2 (MCL)",
        "2024",
        "Naturally occurring; also drilling wastes and metal refinery discharge — relevant in a county with oil and gas activity."
      ],
      [
        "PFOA (UCMR5)",
        "0.0055",
        "ug/L",
        "no MCL applies…",
        "2024",
        "Average of 0.0055 ug/L (5.5 ng/L), range 0.0054-0.0056 — above the 4 ng/L federal PFOA standard adopted in 2024, whose…"
      ],
      [
        "Other PFAS (UCMR5: PFOS, PFHxA…",
        "0.0004-0.0038",
        "ug/L",
        "no MCL (UCMR5…",
        "2024",
        "PFBA averaged 0.0038 ug/L; PFOS, PFHxA, GenX and PFPeA each averaged 0.0004 ug/L with maxima of 0.0011-0.0013 ug/L."
      ],
      [
        "Lithium (UCMR5)",
        "2.38",
        "ug/L",
        "no MCL (UCMR5…",
        "2024",
        "Range 0-7.14 ug/L; naturally occurring and can concentrate in brine waters."
      ]
    ],
    "proj": [
      [
        "Citywide waterline and service improvements with lead line removal",
        3834975,
        "2023",
        "planned",
        "Ohio BUILDS Round 5 grant awarded July 2023 for improvements to waterlines and services on several streets, including lead line removal and elimination of…"
      ],
      [
        "Guernsey County sewer expansion and improvements in Cambridge (Beech Meadows)",
        2717406,
        "2023",
        "planned",
        "Awarded to the Guernsey County Board of Commissioners, not the city: lining two subdivisions' sewer networks (11,490 lf of 8-inch lining), 8,000 lf of 6-inch…"
      ]
    ],
    "plan": [],
    "stress": "Cambridge draws from Wills Creek, and Ohio EPA's 2005 source water assessment — still the current one cited in the CCR — flags that supply as susceptible to leaking underground storage facilities, oil and gas wells, mining runoff, scattered pockets of small unsewered areas, spills from local industries into Wills Creek and its…",
    "sew": {
      "s": "The City of Cambridge operates its own sewer system, billed alongside water through the Utilities Office at 828 Wheeling Avenue. Plant location, capacity, receiving stream, NPDES permit details and any CSO status are not published on the city's website, and rates are available only on request. Separately, Guernsey County received a…",
      "st": "Not published in any source reviewed."
    },
    "fun": [
      "Cambridge sells more water than it drinks: about 10,360 people are served directly, but wholesale deliveries to the Western Guernsey Regional Water District and the Guernsey County Water Department bring the combined…",
      "The city keeps an emergency interconnection with the village of Byesville; it was not needed at all during 2024.",
      "The 2024 CCR reports 2023 average hardness of 305 mg/L, or 17.82 grains per gallon — hard water, typical of the region's limestone and shale geology.",
      "There is a self-serve bulk water vending station on Oxford Avenue for anyone hauling water to fill a pool or supplement a private well; you need a vending card from the utilities office.",
      "The Lead and Copper Rule service line inventory is not online — you have to go to the water treatment plant at 1700 Burgess Ave to look up what your service line is made of."
    ],
    "src": {
      "history": [
        "https://en.wikipedia.org/wiki/Cambridge,_Ohio",
        "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf",
        "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf"
      ],
      "treatment": [
        "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf"
      ],
      "pressure": [
        "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf"
      ],
      "rates": [
        "https://cambridgeoh.org/utilities-office/"
      ],
      "impurities": [
        "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf"
      ],
      "projects": [
        "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf"
      ],
      "water_stress": [
        "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf"
      ],
      "sewer": [
        "https://cambridgeoh.org/utilities-office/",
        "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf"
      ],
      "fun_facts": [
        "https://cambridgeoh.org/wp-content/uploads/2025/03/City-of-Camridge-PWS-CCR-2024.pdf"
      ]
    }
  },
  "zips_served": [
    {
      "zip": "43725",
      "share": 0.6516,
      "dominant": true
    }
  ],
  "photo": {
    "url": "/photos/OH3000111.jpg",
    "caption": "Wills Creek, Ohio, flowing from Wills Creek Dam near its mouth",
    "credit": "Unknown authorUnknown author",
    "license": "Public domain"
  },
  "url": "https://crackedbuckeye.com/water/OH3000111/",
  "api": "https://crackedbuckeye.com/api/water/OH3000111.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), \"Cambridge, City Of · OH3000111\", https://crackedbuckeye.com/water/OH3000111/, built 2026-09-16, accessed [date].",
  "schema": "https://crackedbuckeye.com/api/schema.json"
}