City of Sacramento Main
EPA ID: CA3410020 · 520,407 people served · 107 ZIP codes
ZipCheckup's reading of EPA SDWIS for City of Sacramento Main (CA3410020): 2 unresolved EPA violations on record. With 2 unresolved EPA violations, City of Sacramento Main is currently out of full compliance - approximately 520,407 people in its service area.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for City of Sacramento Main Source: EPA SDWIS service area boundaries.
Service area boundary - Grade B
Service Area Demographics
The City of Sacramento Main serves a community with a median household income of $80,835 and an estimated 979,025 residents across its service area. Approximately 66% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 34% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
City of Sacramento Main's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 69th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How City of Sacramento Main compares to EPA limits
What This Means For You
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 232 detections recorded. 83 exceed federal EPA limits (4 ppt for PFOA/PFOS). 56 exceed state limits.
Comparable Water Systems
Similar-sized systems in California
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
City of Sacramento Main (EPA ID: CA3410020) is a community water system in California that serves approximately 520,407 people from surface water sources.
This system provides water to 107 ZIP codes across 6 communities.
Average Home Safety Score: B (80/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 95758 | 0.0385 mg/L | Yes | N/A |
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: 28 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 79 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 107 ZIP codes:
94203 · 94204 · 94205 · 94206 · 94207 94208 · 94209 · 94211 · 94229 · 94230 94232 · 94234 · 94235 · 94236 · 94237 94239 · 94240 · 94244 · 94245 · 94246 94247 · 94248 · 94249 · 94250 · 94252 94254 · 94256 · 94257 · 94258 · 94259 94261 · 94262 · 94263 · 94267 · 94268 94269 · 94271 · 94273 · 94274 · 94277 94278 · 94279 · 94280 · 94282 · 94283 94284 · 94285 · 94286 · 94287 · 94288 94289 · 94290 · 94291 · 94293 · 94294 94295 · 94296 · 94297 · 94298 · 94299 95659 · 95668 · 95673 · 95758 · 95811 95812 · 95813 · 95814 · 95815 · 95816 95817 · 95818 · 95819 · 95820 · 95821 95822 · 95823 · 95824 · 95825 · 95826 95827 · 95828 · 95829 · 95830 · 95831 95832 · 95833 · 95834 · 95835 · 95836 95837 · 95838 · 95840 · 95841 · 95842 95843 · 95851 · 95852 · 95853 · 95860 95864 · 95865 · 95866 · 95867 · 95887 95894 · 95899
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Sacramento Main (CA3410020) on EPA.gov.
Frequently Asked Questions
Is City of Sacramento Main water safe to drink?
City of Sacramento Main has recorded 1 health-based violation in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does City of Sacramento Main serve?
City of Sacramento Main serves approximately 520,407 people across 107 ZIP codes in California.
Where does City of Sacramento Main get its water?
The primary water source is surface water.
Consumer Confidence Report (CCR)
Every community water system is required to provide an annual Consumer Confidence Report (CCR) to customers. The most recent report is from 2024.
Federal UCMR5 PFAS Monitoring: Above Current MCL
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.
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.
Frequently Asked Questions
How to cite this page
ZipCheckup. (2026). City of Sacramento Main (CA): 1 Health Violation - 80/100. https://zipcheckup.com/water-system/ca3410020/
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author = {{ZipCheckup}},
title = {{City of Sacramento Main (CA): 1 Health Violation - 80/100}},
year = {2026},
url = {https://zipcheckup.com/water-system/ca3410020/}
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Data as of April 2026.
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Sacramento Main (EPA ID: CA3410020) - request the latest Consumer Confidence Report or ask about specific contaminants.