Is Casa, AR Tap Water Safe to Drink?
Graded C, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
61.9/100
waterverge.com Casa, AR — Water Quality Report
Casa's drinking water received a grade of C (61.9 out of 100), indicating fair water quality. The city's 1 water system serves approximately 1,500 residents using purchased surface water.
Lead levels were measured at 1.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 58 violations on record, including 37 health-based violations. 5 remain unresolved.
What to know about Casa's water
Casa ranks #296 out of 345 cities in Arkansas for water quality, placing it among the lowest-rated in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Casa may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 10 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Casa, AR water safe to drink?
Casa's drinking water has significant quality concerns based on EPA testing data. With a grade of C (61.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,500 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Casa
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Casa's water quality assessment. Grade: C (61.9/100).
2 health-based. Contaminants: TTHM.
Contaminants: Public Notice.
2 health-based. Contaminants: TTHM.
Federal disaster declaration (FEMA DR-3541). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4441). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Casa's water supply.
Well within EPA limits.
Violation history
Casa's water system has 58 total violations on record, including 37 health-based violations. 5 remain unresolved. 10 violations were issued in the last 5 years.
Flood & environmental risk
Perry County has experienced 8 federally declared disasters since 1969. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include South Fourche Lafave River Near Hollis, Fourche Lafave River Near Aplin.
Where does Casa's water come from?
Casa's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,500 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include South Fourche Lafave River Near Hollis (river), Fourche Lafave River Near Aplin (river).
What Casa residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Casa's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Casa's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Casa
Industrial polluters nearby
Reported releases to surface water by facilities near Casa, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
POTLATCHDELTIC MANUFACTURING LLC - OLA MILL OLA, AR72853 | — | — | 9.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Casa
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- OLD MIDLAND PRODUCTS9.0 mi
Source: EPA Superfund National Priorities List
Drought conditions
D3 — extreme droughtPerry County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Perry County has experienced 8 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Casa compares by contaminant
Explore where Casa ranks among all Arkansas cities for specific contaminants.
Water source & infrastructure
Where Casa's water comes from
Casa's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 1,500 people through 1 water system.
Water bodies near Casa
Casa is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Casa
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CASA WATER DEPT | AR0000660 | 1,500 | SWP |
How Casa compares
Full Arkansas rankings →Casa's score of 61.9/100 is below the average of 75/100 among major Arkansas cities. It outscores 2 of 10 nearby cities. 8 of 10 nearby cities score higher.
Nearby cities
View Arkansas rankings →About Casa, AR
Learn more about your water
Guides and resources related to Casa's water quality findings.
Explore water quality across Perry
Frequently asked questions
Is Casa, AR tap water safe to drink?
Casa's water quality earned a grade of C (61.9/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #296 out of 345 cities tested in Arkansas.
What contaminants are in Casa's water?
Lead was measured at 1.0 ppb (90th percentile). 58 violations are on record.
How is Casa's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Casa?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Casa's water come from?
Casa's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,500 residents.
What health violations has Casa's water system had?
Casa has 37 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.
How does Casa's water compare to other cities?
Casa ranks #296 out of 345 cities in Arkansas (better than 14% of state cities) and #11947 out of 15744 cities nationally (24th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Casa's small water system affect quality?
Casa's system serves approximately 1,500 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 58 violations on record.