Drinking water quality · 1994
· Verified
What's in Charleston Water System (sc1010001), SC tap water
1 contaminants were measured in the Charleston Water System (sc1010001), SC water system's 1994 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 1994
- Contaminants measured
- 1
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Lead
- Service area
- SC
PFAS — EPA UCMR5 (2023–2025)
2 PFAS compounds above EPA limits in Charleston Water System (sc1010001), SC
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (1.6×)PFOA (Perfluorooctanoic acid)
● Over EPA limit (1.1×)PFHxA
● Detected (no federal limit)PFPeA
● Detected (no federal limit)PFBS
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Charleston Water System (sc1010001), SC's drinking water comes from surface water, drawn from 2 sources.
Source
- BUSHY PARK RESERVOIR
- EDISTO RIVER
Treatment
- HANAHAN WATER TREATMENT (A10001)
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based5 violations on record · most recent Jul 1984resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0216 mg/L90th percentileAt the tap | 0.015 mg/LAction level | At or above the limit |
People also ask about Charleston Water System (sc1010001), SC's water
+Is Charleston Water System (sc1010001), SC tap water safe to drink in 1994?
The 1994 Consumer Confidence Report for the Charleston Water System (sc1010001), SC water utility lists 1 contaminant at or above the federal limit: Lead. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in Charleston Water System (sc1010001), SC tap water?
1 contaminants were measured in Charleston Water System (sc1010001), SC's 1994 Consumer Confidence Report, spanning metals. 1 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in Charleston Water System (sc1010001), SC tap water?
One contaminant in Charleston Water System (sc1010001), SC's 1994 report sits at or above the federal limit: Lead (1.4× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in Charleston Water System (sc1010001), SC tap water?
The contaminant with the highest measured value relative to its federal limit in the 1994 report is Lead, at 1.4× the federal threshold. It belongs to the metals family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Charleston Water System (sc1010001), SC's 1994 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Charleston Water System (sc1010001), SC's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 1994 report; a new report will replace it once the utility publishes its next annual update.