WaterVerge

Is Scotia, CA Tap Water Safe to Drink?

Graded B+, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

906 residents served 1 water system PWSID: CA1210010
Overall Score
80.5 / 100
Violations
4 active
Last Updated
May 2026
Source
Surface water
#362 of 694 in California Top 50% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
80.5/100
waterverge.com
B+ 80.5/100

Scotia, CA — Water Quality Report

Scotia's drinking water received a grade of B+ (80.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 906 residents using surface water.

Lead levels were measured at 0.0 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 9 violations on record, including 4 health-based violations. 4 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Scotia's water

Scotia ranks #362 out of 694 cities in California for water quality, placing it below average in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

As a small community water system, Scotia may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
80.5 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
36.5/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Surface water.
Water Safety

Is Scotia, CA water safe to drink?

Concerns Identified

Scotia's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (80.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 906 residents using surface water (rivers, lakes, or reservoirs).

4
Active Violations
0.0 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Scotia

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Scotia's water quality assessment. Grade: B+ (80.5/100).

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
2 drinking water violations recorded

1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-3592). Flood event — may have impacted local water infrastructure.

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4683). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Revised Total Coliform Rule.

Key contaminant findings

Based on the most recent EPA sampling data for Scotia's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Scotia's water system has 9 total violations on record, including 4 health-based violations. 4 remain unresolved. 3 violations were issued in the last 5 years.

MONRPTTTMR
Most recent violations:
Jun 2025 Revised Total Coliform Rule Resolved
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Jun 2019 Revised Total Coliform Rule Open
Jan 2016 Interim Enhanced Surface Water Treatment Rule Resolved

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 Bull C Nr Weott, Eel R A Scotia, Eel R A Fernbridge.

SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-3592
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4683
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA DR-3591

Where does Scotia's water come from?

Scotia's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 906 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Bull C Nr Weott (river), Eel R A Scotia (river), Eel R A Fernbridge (river).

What Scotia residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Scotia's water.

Request your utility's CCR

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.

Monitor alerts during storms

Scotia'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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

9
Total violations
4
Health-based
4
Active / unresolved
Jun 2025
Most recent violation
Compliance Record

Violations & advisories

9 Total
4 Active
4 Health-based
5 Resolved
Violations by category
Revised Total Coliform Rule
2
Lead and Copper Rule Revisions
2
Interim and Long Term 1 Enhanced Surface Water Treatment Rule
1
Total Coliform Rule
1
Lead and Copper Rule
1
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Jun 2019 Active
Revised Total Coliform Rule
Treatment Technique
Health-Based Health 0
Active
Compliance Violation
Monitoring 0
Jun 2025 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Jun 2025
Jan 2016 Resolved
Interim Enhanced Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jan 2016
Jan 2009 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2009
Jul 1993 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2003
Jun 1993 Resolved
Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jun 1993
Industrial pollution

Top industrial polluters within 10 miles of Scotia

Industrial polluters nearby

Reported releases to surface water by facilities near Scotia, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
CRYSTAL CREAMERY INC. DBA HUMBOLDT CREAMERY
Food · CRYSTAL CREAMERY INC
FORTUNA, CA95540
7.8 mi
HUMBOLDT SAWMILL CO & COGENERATION PLANT
Wood Products · MENDOCINO COS
SCOTIA, CA95565
0.1 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

10
Declared disasters
Mar 2023
Most recent
Flood
Most common type

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.

Mar 2023
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #3592
Jan 2023
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4683
Jan 2023
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA #3591
Apr 2017
SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES
Flood FEMA #4308
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3248
Feb 1993
SEVERE WINTER STORM, MUD & LAND SLIDES, & FLOODING
Flood FEMA #979

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 20.0 ppb from 1995 (20.0 ppb) to 2023 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Surface Water
Operator
Private
Population Served
906
Water Systems
1
Water Source

Where Scotia's water comes from

Surface Water

Scotia's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by private ownership and serves approximately 906 people through 1 water system.

Local Hydrology

Water bodies near Scotia

Scotia is located near 3 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Bull C Nr Weott
river
Eel R A Scotia
river
Eel R A Fernbridge
river
Infrastructure

Water systems serving Scotia

System Name PWSID Population Source
SCOTIA CSD CA1210010 906 SW
Regional Comparison

How Scotia compares

Full California rankings →

Scotia's score of 80.5/100 is above the average of 57/100 among major California cities. It outscores 8 of 10 nearby cities.

Scotia (this city)
80.5
Oakland
77.9
San Diego
39.7
Sacramento
31.2
California avg
57
City Profile

About Scotia, CA

Economic Profile
$61,250
Median Income
$1,222/mo
Median Rent
13.3%
Unemployment
Community
31.9
Median Age
264
People / sq mi
23.8%
College Educated
28.6%
Homeownership
Share this reportHelp others learn about their water quality
WhatsAppXFacebookLinkedInEmail

Frequently asked questions

Is Scotia, CA tap water safe to drink?

Scotia's water quality earned a grade of B+ (80.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #362 out of 694 cities tested in California.

What contaminants are in Scotia's water?

Lead was measured at 0.0 ppb (90th percentile). 9 violations are on record.

How is Scotia'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 Scotia?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Scotia's water come from?

Scotia's water is sourced from Surface water. The city has 1 water system serving approximately 906 residents.

What health violations has Scotia's water system had?

Scotia has 4 health-based violations on record. The most recent violation was recorded in June 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 4 violations remain unresolved.

How does Scotia's water compare to other cities?

Scotia ranks #362 out of 694 cities in California (better than 48% of state cities) and #7851 out of 15744 cities nationally (50th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Scotia's small water system affect quality?

Scotia's system serves approximately 906 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 9 violations on record.