Is Clarence, LA Tap Water Safe to Drink?
Graded D, with 18 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
46/100
waterverge.com Clarence, LA — Water Quality Report
Clarence's drinking water received a grade of D (46 out of 100), indicating poor water quality. The city's 1 water system serves approximately 642 residents using purchased surface water.
Lead levels were measured at 1.2 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 59 violations on record, including 27 health-based violations. 18 remain unresolved.
What to know about Clarence's water
Clarence ranks #234 out of 309 cities in Louisiana 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, Clarence may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 23 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Clarence, LA water safe to drink?
Clarence's drinking water has significant quality concerns based on EPA testing data. With a grade of D (46/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 642 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Clarence
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Clarence's water quality assessment. Grade: D (46/100).
Contaminants: Public Notice.
1 health-based. Contaminants: Public Notice, Surface Water Treatment Rule.
1 health-based. Contaminants: Public Notice, Surface Water Treatment Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Clarence's water supply.
Well within EPA limits.
Violation history
Clarence's water system has 59 total violations on record, including 27 health-based violations. 18 remain unresolved. 23 violations were issued in the last 5 years.
Where does Clarence's water come from?
Clarence's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 642 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Saline Lake At Dam Near Clarence (lake), Black Lake Bayou Near Clarence (lake), Saline Byu Nr Clarence (river), Old River At Hwy 1 Nr Natchitoches (river).
What Clarence residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Clarence'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.
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 Clarence
Industrial polluters nearby
Reported releases to surface water by facilities near Clarence, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
PILGRIM'S PRIDE CORP NATCHITOCHES PROCESSING PLANT NATCHITOCHES, LA71457 | — | — | 5.8 mi |
ALLIANCE COMPRESSORS NATCHITOCHES, LA71457 | — | — | 7.3 mi |
WEYERHAEUSER NR CO NATCHITOCHES PLANT NATCHITOCHES, LA71457 | — | — | 4.0 mi |
PILGRIM'S NATCHITOCHES FEED MILL NATCHITOCHES, LA71457 | — | — | 5.8 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D3 — extreme droughtNatchitoches Parish 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.
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. | 1.2 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Clarence compares by contaminant
Explore where Clarence ranks among all Louisiana cities for specific contaminants.
Water source & infrastructure
Where Clarence's water comes from
Clarence'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 642 people through 1 water system.
Water bodies near Clarence
Clarence is located near 4 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Clarence
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CLARENCE WATER SYSTEM | LA1069002 | 642 | SWP |
How Clarence compares
Full Louisiana rankings →Clarence's score of 46/100 is below the average of 53/100 among major Louisiana cities. It outscores 6 of 10 nearby cities.
Nearby cities
View Louisiana rankings →About Clarence, LA
Learn more about your water
Guides and resources related to Clarence's water quality findings.
Explore water quality across Natchitoches Parish
Frequently asked questions
Is Clarence, LA tap water safe to drink?
Clarence's water quality earned a grade of D (46/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #234 out of 309 cities tested in Louisiana.
What contaminants are in Clarence's water?
Lead was measured at 1.2 ppb (90th percentile). 59 violations are on record.
How is Clarence'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 Clarence?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Clarence's water come from?
Clarence's water is sourced from Purchased surface water. The city has 1 water system serving approximately 642 residents.
What health violations has Clarence's water system had?
Clarence has 27 health-based violations on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 18 violations remain unresolved.
How does Clarence's water compare to other cities?
Clarence ranks #234 out of 309 cities in Louisiana (better than 24% of state cities) and #14083 out of 15744 cities nationally (11th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Clarence's small water system affect quality?
Clarence's system serves approximately 642 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 59 violations on record.