Gilbert-summit Water District (3220001)
EPA ID: SC3220001 · 7,795 people served · 4 ZIP codes
Throughout five consecutive years of federal water monitoring, Gilbert-summit Water District (3220001) recorded zero violations — solid performance for a utility serving 7,795 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Gilbert-summit Water District (3220001) Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Gilbert-summit Water District (3220001) serves a community with a median household income of $80,776 and an estimated 145,525 residents across its service area.
💧 Where Does Your Water Come From?
Gilbert-summit Water District (3220001)'s water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Lexington County, South Carolina rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 18 detections recorded. 8 exceed federal EPA limits (4 ppt for PFOA/PFOS). 6 exceed state limits.
Comparable Water Systems
Similar-sized systems in South Carolina
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Gilbert-summit Water District (3220001) (EPA ID: SC3220001) is a community water system in South Carolina that serves approximately 7,795 people from groundwater sources.
This system provides water to 4 ZIP codes across 3 communities.
Average Home Safety Score: B (84/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by SC or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Gilbert-summit Water District (3220001) (SC3220001) on EPA.gov.
Frequently Asked Questions
Is Gilbert-summit Water District (3220001) water safe to drink?
Based on EPA records, Gilbert-summit Water District (3220001) has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Gilbert-summit Water District (3220001) serve?
Gilbert-summit Water District (3220001) serves approximately 7,795 people across 4 ZIP codes in South Carolina.
Where does Gilbert-summit Water District (3220001) get its water?
The primary water source is groundwater.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: Gilbert-summit Water District (3220001) Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment classification and chemical list sourced from Gilbert-summit Water District (3220001) Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.