Davenport, CA (95017): 1 Health-Based Violation Recorded for Mapped Water Systems
EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: Big Basin Water Company)
Health-based violation records by water system:
EPA records for the water systems mapped to 95017 in Davenport, CA contain 12 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 1 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 1 health-based violation and 11 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.012 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 2 - county-level radon potential, not a home measurement.
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Although just one critical condition is documented for Davenport (95017), 1 elevated-risk finding accompany it in the dataset.
Score Breakdown
Overall Home Safety Score: Score unavailable
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Coverage: 3 of 4 components and 2 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) CRITICAL
Your Water System
ZIP code 95017 in Davenport, California is mapped to the water system Big Basin Water Company (EPA ID: CA4410001). This system provides water to approximately 1,120 people from groundwater sources.
There are 2 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Big Basin Water Company | CA4410001 | 1,120 | Groundwater |
| San Lorenzo Valley Water District | CA4410014 | 21,145 | Surface water |
Other Water Quality Reports in California
- 90001 (Los Angeles)
- 90002 (Los Angeles)
- 90003 (Los Angeles)
- 90004 (Los Angeles)
- 90005 (Los Angeles)
- 90006 (Los Angeles)
- 90007 (Los Angeles)
- 90008 (Los Angeles)
- 90009 (Los Angeles)
- 90010 (Los Angeles)
- 90011 (Los Angeles)
- 90012 (Los Angeles)
- 90013 (Los Angeles)
- 90014 (Los Angeles)
- 90015 (Los Angeles)
- 90016 (Los Angeles)
- 90017 (Los Angeles)
- 90018 (Los Angeles)
- 90019 (Los Angeles)
- 90020 (Los Angeles)
Nearby Water Quality Reports
- 95060 (Santa Cruz) - 5 mi - 18 violations recorded for mapped water systems
- 95007 (Brookdale) - 7 mi - 5 violations recorded for mapped water systems
- 95005 (Ben Lomond) - 8 mi - 5 violations recorded for mapped water systems
- 95018 (Felton) - 9 mi - 8 violations recorded for mapped water systems
- 95041 (Mount Hermon) - 9 mi - 8 violations recorded for mapped water systems
- 95006 (Boulder Creek) - 9 mi - 18 violations recorded for mapped water systems
- 95064 (Santa Cruz) - 9 mi
- 95066 (Scotts Valley) - 11 mi - 14 violations recorded for mapped water systems
- 95067 (Scotts Valley) - 11 mi
- 95061 (Santa Cruz) - 11 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Big Basin Water Company (CA4410001) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 95017.
Detected compounds: PFBS.
Highest measured level: 0.0034 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (10) HIGH
Home & Infrastructure (6) MODERATE
Possible home maintenance concerns - talk to a local expert.
Call (855) 384-4856Paid Partner This is a free service. You will be connected with an independent service provider. We may receive compensation.
Cost & Community (7) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Davenport
Based on local data for ZIP 95017, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Gutter Installation & Repair
The median home in 95017 was built around 1979. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Davenport is 1979; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Homes built around 1979 may be on their second or third roof. A professional inspection can catch damage before leaks start.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 95017 safe to drink?
EPA SDWIS records 12 violations since 2021 across the water systems mapped to ZIP 95017 (primary system: Big Basin Water Company), including 1 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 95017's water come from?
The recorded water source for Big Basin Water Company, a system mapped to ZIP code 95017, is Groundwater. This system serves approximately 1,120 people.
How can I get my water tested in Davenport?
If Big Basin Water Company supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 95017 tap water?
The Lead and Copper Rule record selected for 95017 reports a 90th-percentile lead result of 0.012 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 95017?
95017 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Santa Cruz County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 95017's water?
Yes, PFAS have been detected in samples from water systems mapped to 95017. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Davenport, CA (95017): 1 Health-Based Violation Recorded for Mapped Water Systems. https://zipcheckup.com/report/95017/
@misc{zipcheckup-report-95017,
author = {{ZipCheckup}},
title = {{Davenport, CA (95017): 1 Health-Based Violation Recorded for Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/95017/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 95017
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 95060 | Santa Cruz, CA | 5.2 mi | C | 18 |
| 95007 | Brookdale, CA | 7.4 mi | B | 5 |
| 95005 | Ben Lomond, CA | 7.6 mi | B | 5 |
| 95018 | Felton, CA | 8.5 mi | B | 8 |
| 95041 | Mount Hermon, CA | 8.6 mi | N/A | 8 |
| 95006 | Boulder Creek, CA | 8.9 mi | C | 18 |
| 95064 | Santa Cruz, CA | 9.2 mi | B | 0 |
| 95066 | Scotts Valley, CA | 11.0 mi | C | 14 |
| 95067 | Scotts Valley, CA | 11.1 mi | N/A | 0 |
| 95061 | Santa Cruz, CA | 11.1 mi | N/A | 0 |
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