Full contaminant data, sample history, and sourcing for Morgan County. For readers who want to go beyond the summary.
Contaminant Data — All Analytes
94 well testing events on record, covering
16 analytes.
Data spans 1941 to 2022.
Contaminant
Samples
Years
Detection Rate
Distribution LowModHigh
vs. Limit
vs. OH Avg
Radon
1
2019
100%
167% of limit
↑ 654% above
Manganese
84
1941–2019
76%
420% of limit
↑ 138% above
Sulfate
32
1982–2019
100%
21% of limit
↓ 53% below
Iron
92
1941–2019
75%
3% of limit
↓ 99% below
Arsenic
58
1973–2019
67%
0% of limit
↓ 100% below
Chloride
93
1941–2019
100%
18% of limit
~ typical
Lead
58
1975–2019
69%
0% of limit
↓ 100% below
Fluoride
69
1941–2019
70%
3% of limit
↓ 74% below
Nitrate
24
1973–2019
100%
1% of limit
↓ 84% below
Nitrite
2
1973–2019
50%
1% of limit
~ typical
Uranium
1
2019
100%
2% of limit
↓ 25% below
E. coli
1
2019
0%
—
—
Hardness
68
1941–2019
100%
—
~ typical
pH
54
1941–2019
100%
—
~ typical
Sodium
93
1973–2019
100%
—
↓ 30% below
Total Coliform
1
2019
0%
—
—
Distribution shows the share of samples in each concentration band relative to the EPA Maximum Contaminant Level (MCL): Low = below half the MCL, Moderate = between half and the MCL, High = above the MCL. Analytes without an MCL (e.g. sodium, pH) show — in the limit columns. State average is based on county median values across OH.
Compare your result with Morgan County
Of the 58 arsenic tests on record for Morgan County (1973–2019),
33% found none.
Of the 93 chloride tests on record for Morgan County (1941–2019),
0% found none, and half were below 45 mg/L.
Of the 69 fluoride tests on record for Morgan County (1941–2019),
30% found none.
Of the 92 iron tests on record for Morgan County (1941–2019),
25% found none.
Of the 58 lead tests on record for Morgan County (1975–2019),
31% found none.
Of the 84 manganese tests on record for Morgan County (1941–2019),
24% found none, and half were below 10 µg/L.
Of the 24 nitrate tests on record for Morgan County (1973–2019),
0% found none, and half were below 75 µg/L.
Of the 32 sulfate tests on record for Morgan County (1982–2019),
0% found none, and half were below 51.6 mg/L.
Data Coverage & Gaps
Well-sampled analytes (15+ samples)
Manganese 84 samples
Sulfate 32 samples
Iron 92 samples
Arsenic 58 samples
Chloride 93 samples
Lead 58 samples
Fluoride 69 samples
Nitrate 24 samples
Hardness 68 samples
pH 54 samples
Sodium 93 samples
Limited data (<15 samples) — interpret with caution
Radon 1 sample
Nitrite 2 samples
Uranium 1 sample
E. coli 1 sample
Total Coliform 1 sample
No private-well PFAS data for Morgan County
We have no private well sampling data for PFAS compounds (PFOA, PFOS, PFNA, and related chemicals) in Morgan County.
PFAS testing for private wells requires a dedicated lab panel (~$300–$500). If you are near a military base, airport, or industrial site, consider testing proactively. Learn more about PFAS →
Public vs. Private Water in Morgan County
15Active public water systems
6,267Residents on public water
65%Households on private wells
Public water systems in Morgan County are regulated by the EPA and must test and report contaminant levels. Private well owners are responsible for their own testing — there is no routine monitoring of private wells by any government agency.
CDC Health Outcome Correlations
Where contaminants detected in Morgan County have established associations with specific health outcomes, we cross-reference CDC PLACES county-level prevalence data. This is a contextual signal, not a causal claim.
This report aggregates data from the following public databases:
Water Quality Portal (WQP) — groundwater sample results for Morgan County from EPA, USGS, and state agencies. Browse WQP data →
EPA Safe Drinking Water Information System (SDWIS) — public water system inventory used to estimate the share of residents on private wells. Browse SDWIS →
Census ACS 5-Year Estimates — well and cistern household counts (variable DP04_0074E) used to calculate the private-well percentage for Morgan County. Census data explorer →
USGS Aquifer Atlas — principal aquifer type underlying Morgan County, which informs which contaminants are geologically likely. USGS Aquifer Atlas →
EPA UCMR 5 (2023–2025) — PFAS occurrence data from public water systems, used as a proxy indicator for aquifer PFAS exposure. Rows marked "municipal" in the table above come from this source. About UCMR 5 →
EPA Toxics Release Inventory (TRI) — industrial facility chemical releases near Morgan County, used in contamination risk scoring. TRI Explorer →
EPA Superfund NPL — National Priorities List sites in or near Morgan County, used in contamination risk scoring. Superfund site search →
CDC PLACES — county-level health outcome prevalence (kidney disease, cancer, heart disease) correlated with detected contaminants. About CDC PLACES →
Methodology
Raw records are downloaded from the Water Quality Portal and normalized to µg/L (ppb). Records are deduplicated by sample ID and date, and certified outliers are excluded. Analyte names are mapped to EPA canonical forms. Detection rates, distribution bands, and MCL comparisons are computed from the normalized dataset.
Distribution bands use the EPA Maximum Contaminant Level as the threshold: concentrations below 50% of the MCL are classed as Low, between 50% and 100% as Moderate, and above 100% as High. For analytes without an MCL (sodium, hardness, pH), distribution is not computed.
State comparison uses the median of county median values across all counties in OH with at least one sample for that analyte.