Water Quality: El Dorado, AR
13 water systems • 27,879 people served
Multiple Health ViolationsWater Quality Summary
El Dorado is served by 13 public water systems with a combined service population of 27,879 people, and has 199 EPA Safe Drinking Water Act violations on record. Critically, 76 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. El Dorado's violation count is 365% above the national average for Arkansas. Contaminants associated with violations include Chlorine, Contaminant 1094, E. coli, Gross Alpha, TTHM.
Contaminants Found
Eye and nose irritation at high levels; long-term exposure above the MCL may cause liver and kidney damage.
Common source: Water treatment disinfectant added to kill harmful microorganisms
EPA limit: 4.0 mg/L (MRDL — Maximum Residual Disinfectant Level)
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving El Dorado
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| EL DORADO WATERWORKS | AR0000550 | Groundwater | 17,932 | 9 |
| PARKERS CHAPEL PUBLIC WATER | AR0000560 | Groundwater | 2,391 | 2 |
| WILDWOOD WATER ASSOCIATION | AR0000562 | Groundwater | 1,350 | 6 |
| FAIRCREST WATER ASSOCIATION | AR0000544 | Groundwater | 1,329 | 8 |
| OLD UNION PUBLIC WATER AUTHORITY | AR0000559 | Groundwater | 1,200 | 55 |
| LAWSON-URBANA WATER ASSOC | AR0000548 | Groundwater | 1,108 | 12 |
| WESSON-NEWELL WATER ASSOC | AR0000103 | Groundwater | 658 | 0 |
| LISBON WATER ASSOCIATION | AR0000716 | Groundwater | 439 | 0 |
| MOUNT HOLLY WATERWORKS | AR0000002 | Groundwater | 384 | 3 |
| OAK MANOR WATER ASSOCIATION | AR0000558 | Groundwater | 338 | 1 |
| HARMONY WATER ASSOCIATION | AR0000546 | Groundwater | 336 | 30 |
| BANKS WATERWORKS | AR0000068 | Groundwater | 244 | 72 |
| LOUANN WATERWORKS | AR0000406 | Groundwater | 170 | 1 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Arkansas
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.