COLUMBIA CITY OF (SC4010001)
PWSID: SC4010001 · Columbia, SC · Serves 354,068 people
According to EPA Safe Drinking Water Information System (SDWIS), COLUMBIA CITY OF (SC4010001) (PWSID SC4010001) in Columbia, SC is listed as a CWS water system covering about 354,068 people. The same extract lists 5 health-based violation records spanning 2015-2024. Those 5 health-based rows for COLUMBIA CITY OF (SC4010001) cover contaminants such as Chlorite, Revised Total Coliform Rule, Interim Enhanced Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
COLUMBIA CITY OF (SC4010001) has 5 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Chlorite, Revised Total Coliform Rule, Interim Enhanced Surface Water Treatment Rule. Recorded violations span 2015–2024. Day-to-day primacy enforcement for this system runs through the South Carolina drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the South Carolina state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- SC4010001
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Columbia, SC
- Population Served
- 354,068
- Health Violations
- Yes (5)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Chlorite | 3 | 3 |
| Revised Total Coliform Rule | 1 | 1 |
| Interim Enhanced Surface Water Treatment Rule | 1 | 1 |
Violation History (5)
| Contaminant | Health | Date |
|---|---|---|
| Chlorite | Yes | Dec 1, 2024 |
| Chlorite | Yes | Dec 1, 2024 |
| Chlorite | Yes | Dec 1, 2024 |
| Revised Total Coliform Rule | Yes | Apr 1, 2021 |
| Interim Enhanced Surface Water Treatment Rule | Yes | Nov 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for COLUMBIA CITY OF (SC4010001)?
How many people does COLUMBIA CITY OF (SC4010001) serve?
What violations does COLUMBIA CITY OF (SC4010001) have?
What contaminants have been found in COLUMBIA CITY OF (SC4010001) water?
Compare beyond South Carolina
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest COLUMBIA CITY OF (SC4010001) on cumulative violation count (5) and EPA-reported population served (354,068). Violation-count peers include Jemez Pueblo, Acoma Main, OMAHA TRIBE PWS. Population peers include AQUARION-EASTERN FAIRFIELD COUNTY, OCWA, ST PETERSBURG, CITY OF.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
COLUMBIA CITY OF (SC4010001) (SC4010001) is drawn from EPA SDWIS. Nearby county systems in this extract include FORT JACKSON (SC4010501); BGWC I-20 (SC3250012); HOPKINS COMMUNITY WATER SYSTEM (4020002); LIEBER CORRECTIONAL INSTITUTE (1870050). Health-based rows (5 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.