{ "type": "water", "pwsid": "OH4000111", "name": "Jackson, City Of", "county": "Jackson", "population": 9691, "producer": true, "source_class": "reservoir", "label": "Jisco Lake + Hammertown Lake (Jackson City Reservoir)", "bodies": [ "Jisco Lake", "Hammertown Lake" ], "intakes": [ "Jisco Lake", "Hammertown Lake" ], "wells": 0, "aquifer": "", "notes": "Two city-owned reservoir lakes near Jackson serve as blended surface-water intakes; no wells used.", "urls": [ "https://www.athensconservancy.org/aaorg/hammertownlake.html", "https://www.athensconservancy.org/aaorg/jiscolake.html" ], "chain": [ "OH4000111" ], "plants": [ { "n": "Jackson Water Treatment Plant", "la": 39.0967, "lo": -82.6716, "pt": "approximate", "wb": "Jisco Lake", "src": "Jisco Lake + Hammertown Lake (Jackson City Reservoir)", "cls": "reservoir", "in": [ { "n": "Jisco Lake intake", "wb": "Jisco Lake", "role": "primary", "src": "Municipal reservoir (Jisco Lake) south of Jackson used as a primary raw water source for the city plant", "la": 39.0967, "lo": -82.6716, "pt": "intake" }, { "n": "Hammertown Lake intake", "wb": "Hammertown Lake (Jackson City Reservoir), impounding a tributary of Buckeye Creek", "role": "secondary", "src": "The city's larger reservoir, formed in 1954 on a tributary to Buckeye Creek southwest of Jackson; also used for recreation", "la": 39.0564, "lo": -82.6847, "pt": "dam" } ] } ], "facts": { "hist": [ [ "1898", "The South Street waterline (Main Street to Ohio Avenue) is installed - still in service 123 years later, with galvanized setters and potential lead joints, when the state funded its replacement." ], [ "1954", "Hammertown Lake Dam is commissioned - a 60-foot-high, 1,200-foot-long earthen embankment designed by Jones and Henry Engineers, built for water supply and owned by the City of Jackson." ], [ "2003", "Ohio EPA completes the Source Water Assessment for the Jackson public water system." ], [ "2021", "Jackson receives a $1.01 million Ohio BUILDS grant (Round 2) for the Mill Street Area Sewer Extension, serving about 24 unsewered households." ], [ "2023", "Jackson receives a $1,625,046 Ohio BUILDS grant (Round 5) to replace the failing 1898 South Street waterline; the award notes the city's 24% water-loss rate." ], [ "2024", "The city fails to submit its initial lead and galvanized service line inventory to Ohio EPA by the October 16, 2024 federal deadline - a drinking water violation." ] ], "treat": "Surface water from two city-owned reservoirs, filtered and chlorinated. CORRECTION to the draft: Hammertown Lake is the working source and Jisco Lake is a backup - the 2025 CCR says the city 'receives its water from Hammertown lake and utilizes Jisco Lake as a backup water source,' not a blended…", "press": "Not published. The 2025 CCR's backflow section discusses low-pressure conditions only generically (hydrant flushing, main breaks, fires, high demand) and gives no system psi or…", "rate": { "g": null, "n": "Not published online. The city's Utility Office page (which bills electric, water, sewer and garbage together) carries no rate table and points customers to the American Legal…", "m": null }, "imp": [ [ "Total Trihalomethanes (TTHM)", "62.53", "ppb", "80", "2025", "Range 27.30-80.2 ppb. The high end of the range exceeds the 80 ppb MCL, but compliance is on the locational running…" ], [ "Haloacetic Acids (HAA5)", "24.93", "ppb", "60", "2025", "Range 16-29.8 ppb. Chlorination byproduct, expected in a surface-water system with high organic load." ], [ "Chlorine", "1.30", "ppm", "4 (MRDL)", "2025", "Range 1.06-1.44 ppm. Disinfectant residual." ], [ "Fluoride", "1.17", "ppm", "4", "2025", "Range 1.06-1.17 ppm." ], [ "Nitrate", "0.13", "ppm", "10", "2025", "Range 0.1-0.13 ppm. Very low." ], [ "Barium", "0.011", "ppm", "2", "2025", "Erosion of natural deposits; far below the MCL." ], [ "Radium-228", "2.25", "pCi/L", "5", "2021", "Naturally occurring radioactive material; about 45% of the combined radium-226/228 MCL. Monitored less than annually.…" ], [ "Lead (90th percentile)", "<2.0", "ppb", "15 (AL)", "2025", "0 of 20 samples above the action level; all repeat samples below detection." ], [ "Copper (90th percentile)", "0.033", "ppm", "1.3 (AL)", "2025", "Range 0.00-0.057 ppm; 0 of 20 samples above the action level." ], [ "Turbidity", "0.12", "NTU", "TT (0.3 NTU in…", "2025", "Highest recorded 2025 result per the CCR narrative; 100% of monthly samples met the limit. The CCR's own table prints…" ] ], "proj": [ [ "South Street waterline replacement (Main Street to Ohio Avenue)", 1625046, "2023", "unknown", "Ohio BUILDS Round 5 grant announced July 20, 2023: about 5,800 linear feet of 8-inch waterline, 32 gate valves, 3,000 linear feet of service line, 100 service…" ], [ "Mill Street Area Sewer Extension", 1010000, "2021", "unknown", "Ohio BUILDS Round 2 grant: public sewer to about 24 households with failing home sewage treatment systems on Mill, Putnam, Ohio, Summit and Crossin streets…" ] ], "plan": [ [ "Complete and submit the initial lead and galvanized service line inventory to Ohio EPA", null, "2025-2026", "needed", "The city missed the October 16, 2024 federal deadline and issued a public violation notice on June 12, 2025. As of that notice the inventory was partially…" ] ], "stress": "Ohio EPA's 2003 source water assessment treats all Ohio surface waters as susceptible to contamination - readily accessible, and contaminable by chemicals and pathogens that can reach the intake with little warning. Jackson's drinking water source protection area specifically contains home sewage disposal system discharges, runoff from…", "sew": { "s": "City-owned and city-operated. Jackson runs its own wastewater treatment plant at 225 Wood Ave (740-286-1137), staffed with a chief plant operator, Class II and Class III operators, a plant repairman and a pretreatment coordinator, and it operates the collection system and pump stations. Plant capacity, receiving stream and NPDES permit…", "st": "Not published. The city website has no stormwater utility, MS4 permit, or storm sewer page." }, "fun": [ "Hammertown Lake, Jackson's working reservoir, sits behind a 60-foot-high, 1,200-foot-long earthen dam commissioned in 1954 and still owned by the city; it holds about 4,200 acre-feet at normal pool.", "Jackson does not blend its two lakes: Hammertown is the source and Jisco is the backup, per the city's own 2025 water quality report - a common misreading of this system.", "The waterline the state paid $1.6 million to replace on South Street had been in the ground since about 1898 - galvanized setters, potential lead joints, and so odd-sized the city struggled to find parts when it broke.", "About a quarter of the water Jackson treats never reaches a customer: the state put the city's water-loss rate at 24% when it awarded the 2023 waterline grant.", "In June 2025 Jackson had to mail every customer a violation notice - not for anything in the water, but for missing the federal deadline to inventory its lead service lines." ], "src": { "history": [ "https://www.jacksonohio.us/2025%20CCR.pdf", "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf", "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2021/11/02/file_attachments/1983825/Ohio%20BUILDS%20Project%20Descriptions%20Round%202.pdf", "https://damsoftheworld.com/usa/ohio/hammertown-lake-dam/" ], "treatment": [ "https://www.jacksonohio.us/2025%20CCR.pdf" ], "pressure": [ "https://www.jacksonohio.us/2025%20CCR.pdf" ], "rates": [ "https://www.jacksonohio.us/departments/utility_office/index.php", "https://codelibrary.amlegal.com/codes/jackson/latest/overview" ], "impurities": [ "https://www.jacksonohio.us/2025%20CCR.pdf" ], "projects": [ "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf", "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2021/11/02/file_attachments/1983825/Ohio%20BUILDS%20Project%20Descriptions%20Round%202.pdf" ], "planned": [ "https://www.jacksonohio.us/2025%20CCR.pdf" ], "water_stress": [ "https://www.jacksonohio.us/2025%20CCR.pdf", "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf" ], "sewer": [ "https://www.jacksonohio.us/departments/waste_water_treatment.php", "https://www.jacksonohio.us/departments/utility_office/index.php", "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2021/11/02/file_attachments/1983825/Ohio%20BUILDS%20Project%20Descriptions%20Round%202.pdf" ], "fun_facts": [ "https://damsoftheworld.com/usa/ohio/hammertown-lake-dam/", "https://www.jacksonohio.us/2025%20CCR.pdf", "https://content.govdelivery.com/attachments/OHIOGOVERNOR/2023/07/20/file_attachments/2560320/Ohio%20BUILDS%20Water%20Infrastructure%20Grant%20Projects%20-%20Round%205.pdf" ] } }, "zips_served": [ { "zip": "45640", "share": 0.4725, "dominant": true }, { "zip": "45692", "share": 0.0091, "dominant": false } ], "photo": { "url": "/photos/OH4000111.jpg", "caption": "The water tower in Jackson, Ohio", "credit": "Dan Keck from Ohio", "license": "CC0" }, "url": "https://crackedbuckeye.com/water/OH4000111/", "api": "https://crackedbuckeye.com/api/water/OH4000111.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), \"Jackson, City Of · OH4000111\", https://crackedbuckeye.com/water/OH4000111/, built 2026-09-16, accessed [date].", "schema": "https://crackedbuckeye.com/api/schema.json" }