Is Awendaw, SC Tap Water Safe to Drink?
Graded B+, with 8 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
81.6/100
waterverge.com Awendaw, SC — Water Quality Report
Awendaw's drinking water received a grade of B+ (81.6 out of 100), indicating good water quality. The city's 2 water systems serve approximately 746 residents using groundwater.
Lead levels were measured at 0.2 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 19 violations on record, including 1 health-based violation. 8 remain unresolved.
What to know about Awendaw's water
Awendaw ranks #133 out of 196 cities in South Carolina for water quality, placing it below average in the state.
Awendaw relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Awendaw may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Awendaw, SC water safe to drink?
Awendaw's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.6/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 746 residents using groundwater (wells).
Recent water quality updates for Awendaw
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Awendaw's water quality assessment. Grade: B+ (81.6/100).
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Contaminants: Lead and Copper Rule.
Federal disaster declaration (FEMA DR-3597). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4677). Hurricane event — may have impacted local water infrastructure.
Contaminants: E. COLI.
Key contaminant findings
Based on the most recent EPA sampling data for Awendaw's water supply.
Well within EPA limits.
Violation history
Awendaw's water system has 19 total violations on record, including 1 health-based violation. 8 remain unresolved. 3 violations were issued in the last 5 years.
Flood & environmental risk
Charleston County has experienced 10 federally declared disasters since 2016. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Awendaw's water come from?
Awendaw's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 746 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Awendaw residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Awendaw'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.
Awendaw'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
Drought conditions
D3 — extreme droughtCharleston 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
Charleston County has experienced 10 federally declared disasters since 2016. 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. | 0.2 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Awendaw compares by contaminant
Explore where Awendaw ranks among all South Carolina cities for specific contaminants.
Water source & infrastructure
Where Awendaw's water comes from
Awendaw's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 746 people through 2 water systems.
Water systems serving Awendaw
| System Name | PWSID | Population | Source |
|---|---|---|---|
| AWENDAW TOWN OF (SC1010504) | SC1010504 | 713 | GW |
| WINDWOOD FARM HOME (SC1070963) | SC1070963 | 33 | GW |
How Awendaw compares
Full South Carolina rankings →Awendaw's score of 81.6/100 is on par with the average of 77/100 among major South Carolina cities. It outscores 4 of 10 nearby cities. 6 of 10 nearby cities score higher.
Nearby cities
View South Carolina rankings →About Awendaw, SC
Wikipedia →Awendaw is a small fishing town in Charleston County, South Carolina, United States. As of the 2020 census, Awendaw had a population of 1,399. Awendaw is part of the Charleston, South Carolina metropolitan area.
Learn more about your water
Guides and resources related to Awendaw's water quality findings.
Explore water quality across Charleston
Frequently asked questions
Is Awendaw, SC tap water safe to drink?
Awendaw's water quality earned a grade of B+ (81.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #133 out of 196 cities tested in South Carolina.
What contaminants are in Awendaw's water?
Lead was measured at 0.2 ppb (90th percentile). 19 violations are on record.
How is Awendaw'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 Awendaw?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Awendaw's water come from?
Awendaw's water is sourced from Groundwater. The city has 2 water systems serving approximately 746 residents.
What health violations has Awendaw's water system had?
Awendaw has 1 health-based violation on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 8 violations remain unresolved.
Is Awendaw's groundwater at risk of contamination?
Awendaw uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 19 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Awendaw's water compare to other cities?
Awendaw ranks #133 out of 196 cities in South Carolina (better than 32% of state cities) and #7414 out of 15744 cities nationally (53th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.