Compliance record
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 880 µg/L 22% of the EPA limit 4000 µg/L
worst single sample: 960 µg/L | 99/99 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9.73 µg/L No EPA limit set
worst single sample: 12.7 µg/L | 39/40 | SYR4 | 2012–2019 |
| Copper | 1262.5 µg/L 97% of the EPA limit 1300 µg/L
worst single sample: 1800 µg/L | 36/40 | SYR4 | 2014–2017 |
| Bromoform | 60.54 µg/L No EPA limit set
worst single sample: 76.2 µg/L | 35/36 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 15.92 µg/L 27% of the EPA limit 60 µg/L
worst single sample: 62.8 µg/L | 33/33 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 12.145 µg/L No EPA limit set
worst single sample: 13.9 µg/L | 32/33 | SYR4 | 2013–2019 |
| TTHM | 70.2 µg/L 88% of the EPA limit 80 µg/L
worst single sample: 83.4 µg/L | 32/33 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 7.38 pCi/L No EPA limit set
worst single sample: 7.6 pCi/L | 25/29 | SYR4 | 2012–2019 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 23/23 | LCR | 2025 |
| Monobromoacetic Acid | 4.32 µg/L No EPA limit set
worst single sample: 5.7 µg/L | 13/33 | SYR4 | 2013–2019 |
| Bromodichloromethane | 2.985 µg/L No EPA limit set
worst single sample: 3.3 µg/L | 4/36 | SYR4 | 2012–2019 |
| Lead | 3.03 µg/L 20% of the EPA limit 15 µg/L
worst single sample: 3.3 µg/L | 4/43 | SYR4 | 2012–2018 |
| Nitrate-Nitrite | 140 µg/L 1.4% of the EPA limit 10000 µg/L | 4/64 | SYR4 | 2012–2019 |
| Barium | 397 µg/L 20% of the EPA limit 2000 µg/L
worst single sample: 400 µg/L | 3/3 | SYR4 | 2012–2018 |
| Dichloroacetic Acid | 29.805 µg/L No EPA limit set
worst single sample: 31.3 µg/L | 2/33 | SYR4 | 2013–2019 |
| Lithium | 26 µg/L No EPA limit set | 2/2 | UCMR-5 | 2025 |
| Chromium | 3.2 µg/L 3.2% of the EPA limit 100 µg/L | 1/3 | SYR4 | 2012–2018 |
| Mercury | 0.2600 µg/L 13% of the EPA limit 2 µg/L | 1/3 | SYR4 | 2012–2018 |
| Monochloroacetic Acid | 3.1 µg/L No EPA limit set | 1/33 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 28.5 µg/L No EPA limit set | 1/33 | SYR4 | 2013–2019 |
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
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Frequently asked questions about Marianna Waterworks
Is Marianna Waterworks tap water safe to drink?
EPA monitoring detected 20 contaminants in Marianna Waterworks's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Marianna Waterworks's water?
EPA monitoring detected Fluoride, Dibromochloromethane, Copper, Bromoform, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Marianna Waterworks serve?
Marianna Waterworks reports serving 3,238 people in Arkansas, per its EPA record.
Has Marianna Waterworks had any water quality violations?
The EPA has no formal drinking-water violations on file for Marianna Waterworks.
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.