Is Hydesville, CA Tap Water Safe to Drink?
Graded B+, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
81.9/100
waterverge.com Hydesville, CA — Water Quality Report
Hydesville's drinking water received a grade of B+ (81.9 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,366 residents using groundwater.
Lead levels were measured at 2.3 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 12 violations on record, including 2 health-based violations. 3 remain unresolved.
What to know about Hydesville's water
Hydesville ranks #338 out of 694 cities in California for water quality, placing it mid-range in the state.
Hydesville relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Hydesville may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 7 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Hydesville, CA water safe to drink?
Hydesville's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,366 residents using groundwater (wells).
Recent water quality updates for Hydesville
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Hydesville's water quality assessment. Grade: B+ (81.9/100).
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Contaminants: TTHM, Total Haloacetic Acids (HAA5).
Contaminants: Lead and Copper Rule.
Federal disaster declaration (FEMA DR-3592). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4683). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Hydesville's water supply.
Well within EPA limits.
Violation history
Hydesville's water system has 12 total violations on record, including 2 health-based violations. 3 remain unresolved. 7 violations were issued in the last 5 years.
Flood & environmental risk
Humboldt County has experienced 10 federally declared disasters since 1974. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Eel R A Scotia, Eel R A Fernbridge.
Where does Hydesville's water come from?
Hydesville's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,366 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Eel R A Scotia (river), Eel R A Fernbridge (river).
What Hydesville residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Hydesville's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Hydesville's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Hydesville
Industrial polluters nearby
Reported releases to surface water by facilities near Hydesville, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
CRYSTAL CREAMERY INC. DBA HUMBOLDT CREAMERY FORTUNA, CA95540 | — | — | 4.0 mi |
HUMBOLDT SAWMILL CO & COGENERATION PLANT SCOTIA, CA95565 | — | — | 5.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Humboldt County has experienced 10 federally declared disasters since 1974. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 2.3 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Hydesville compares by contaminant
Explore where Hydesville ranks among all California cities for specific contaminants.
Water source & infrastructure
Where Hydesville's water comes from
Hydesville's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 1,366 people through 1 water system.
Water bodies near Hydesville
Hydesville is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Hydesville
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HYDESVILLE CO. W.D. | CA1210019 | 1,366 | GW |
How Hydesville compares
Full California rankings →Hydesville's score of 81.9/100 is above the average of 57/100 among major California cities. It outscores 8 of 10 nearby cities.
Nearby cities
View California rankings →About Hydesville, CA
Wikipedia →Hydesville is a census-designated place (CDP) in Humboldt County, California, United States. Hydesville is located 4.5 miles (7.2 km) southeast of Fortuna and 2.25 miles (3.6 km) southeast of Rohnerville, at an elevation of 364 feet (111 m). The population was 1,244 at the 2020 census, up from 1,237 at the 2010 census.
Learn more about your water
Guides and resources related to Hydesville's water quality findings.
Explore water quality across Humboldt
Frequently asked questions
Is Hydesville, CA tap water safe to drink?
Hydesville's water quality earned a grade of B+ (81.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #338 out of 694 cities tested in California.
What contaminants are in Hydesville's water?
Lead was measured at 2.3 ppb (90th percentile). 12 violations are on record.
How is Hydesville's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Hydesville?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Hydesville's water come from?
Hydesville's water is sourced from Groundwater. The city has 1 water system serving approximately 1,366 residents.
What health violations has Hydesville's water system had?
Hydesville has 2 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
Is Hydesville's groundwater at risk of contamination?
Hydesville uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 12 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Hydesville's water compare to other cities?
Hydesville ranks #338 out of 694 cities in California (better than 51% of state cities) and #7263 out of 15744 cities nationally (54th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Hydesville's small water system affect quality?
Hydesville's system serves approximately 1,366 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 12 violations on record.