What was found in Hollister's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 160 µg/L 1.6% of the EPA limit 10000 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 1870 µg/L — CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 7/9 | SYR4 |
| Copper | 107.9 µg/L 8.3% of the EPA limit 1300 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 322 µg/L — PARADISE POINT RESORT LLC · 250 people · 2019 | 9/9 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 306 µg/L — WALKER MHP · 52 people · 2019 | 6/9 | SYR4 |
| TTHM | 4.924 µg/L 6.2% of the EPA limit 80 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 103.785 µg/L — CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 5/9 | SYR4 |
| Chloroform | 2.126 µg/L No EPA limit set Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 82.19 µg/L — CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 8/9 | SYR4 |
| Total Haloacetic Acids (HAA5) | 45.345 µg/L 76% of the EPA limit 60 µg/L Highest in the city: CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 3/9 | SYR4 |
| Lead | 3.0665 µg/L 20% of the EPA limit 15 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 31.74 µg/L — BLUE RIDGE ESTATES SUBD · 34 people · 2019 | 9/9 | SYR4 |
| Trichloroacetic Acid | 24.4005 µg/L No EPA limit set Highest in the city: CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 4/9 | SYR4 |
| Dichloroacetic Acid | 1.1 µg/L No EPA limit set Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 20.943 µg/L — CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 5/9 | SYR4 |
| Barium | 17.015 µg/L 0.9% of the EPA limit 2000 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 20.57 µg/L — BLUE RIDGE ESTATES SUBD · 34 people · 2018 | 9/9 | SYR4 |
| Bromodichloromethane | 1.529 µg/L No EPA limit set Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 15.5 µg/L — CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 6/9 | SYR4 |
| Gross Alpha, Excl. Radon And U | 15.46 pCi/L 103% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Main supplier: HOLLISTER PWS · 4,426 people · 2017 | 2/9 | SYR4 |
| Monochloroacetic Acid | 10 µg/L No EPA limit set Highest in the city: GOBBLERS KNOB MHP · 230 people · 2019 | 1/9 | SYR4 |
| Chromium | 4.815 µg/L 4.8% of the EPA limit 100 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 6.8705 µg/L — BRANSON CREEK COMMUNITY ASSOCIATION · 175 people · 2019 | 8/9 | SYR4 |
| Dibromochloromethane | 1.188 µg/L No EPA limit set Main supplier: HOLLISTER PWS · 4,426 people · 2019
Highest in the city: 5.4025 µg/L — CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 6/9 | SYR4 |
| Combined Radium (-226 And -228) | 4.16 pCi/L 83% of the EPA limit 5 pCi/L Main supplier: HOLLISTER PWS · 4,426 people · 2018 | 4/9 | SYR4 |
| Combined Uranium | 4.1124 µg/L 14% of the EPA limit 30 µg/L Main supplier: HOLLISTER PWS · 4,426 people · 2017 | 2/9 | SYR4 |
| Cadmium | 2.099 µg/L 42% of the EPA limit 5 µg/L Highest in the city: CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 2/9 | SYR4 |
| Xylenes, Total | 1.38 µg/L 0% of the EPA limit 10000 µg/L Highest in the city: BRANSON CREEK COMMUNITY ASSOCIATION · 175 people · 2019 | 1/9 | SYR4 |
| Dibromoacetic Acid | 1.147 µg/L No EPA limit set Highest in the city: CLEVENGER BRANCH MEMBERS CORP · 150 people · 2019 | 1/9 | SYR4 |
| Bromoform | 0.7500 µg/L No EPA limit set Highest in the city: PARADISE POINT RESORT LLC · 250 people · 2019 | 2/9 | SYR4 |
| Toluene | 0.7000 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: PARADISE POINT RESORT LLC · 250 people · 2019 | 1/9 | SYR4 |
| Lead | 0.0010 mg/L 6.9% of the EPA limit 0.0150 mg/L Main supplier: HOLLISTER PWS · 4,426 people · 2025
Highest in the city: 0.1035 mg/L — PARADISE POINT RESORT LLC · 250 people · 2025 | 9/9 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Hollister
| Supplier | Population served |
|---|---|
| HOLLISTER PWS | 4,426 |
| PARADISE POINT RESORT LLC | 250 |
| GOBBLERS KNOB MHP | 230 |
| COUNTRY FARM ESTATES HOA INC | 183 |
| BRANSON CREEK COMMUNITY ASSOCIATION | 175 |
| CLEVENGER BRANCH MEMBERS CORP | 150 |
| WALKER MHP | 52 |
| TABLE ROCK HEIGHTS WATER COMPANY | 50 |
| BLUE RIDGE ESTATES SUBD | 34 |
Frequently asked questions about Hollister tap water
Is Hollister tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Hollister. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Hollister?
9 public water suppliers report drinking-water monitoring for Hollister, Missouri to the EPA. Each is listed above with its population served.
What contaminants are in Hollister's water?
The contaminants EPA monitoring detected in Hollister include Nitrate-Nitrite, Copper, Fluoride, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.