Lake Forest Park Tap Water Quality Report
Lake Forest Park's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
No single water system serves most of Lake Forest Park (13,276 residents, Census 2024 estimate). Its large systems are LAKE FOREST PARK WATER DISTRICT (EPA counts 3,171 people served, about 24% of Lake Forest Park's population); SEATTLE PUBLIC UTILITIES (EPA counts 955,506 people served, more than Lake Forest Park's population); NORTHSHORE UTILITY DISTRICT (EPA counts 103,052 people served, more than Lake Forest Park's population); North City Water District (EPA counts 31,323 people served, more than Lake Forest Park's population). EPA's counts may include people served outside Lake Forest Park, so each share is at most that. Check which one bills you: each system's figures are shown separately below.
- LAKE FOREST PARK WATER DISTRICT: 161 contaminants tested, 1 above EPA MCLGs; health-based violations since 2020: 0
- SEATTLE PUBLIC UTILITIES: 196 contaminants tested, 2 above EPA MCLGs; health-based violations since 2020: 0
- NORTHSHORE UTILITY DISTRICT: 37 contaminants tested, 1 above EPA MCLGs; health-based violations since 2020: 0
- North City Water District: 37 contaminants tested, 1 above EPA MCLGs; health-based violations since 2020: 0
Other systems listed for Lake Forest Park with results above guidelines: NORTHSHORE UTILITY DISTRICT (1 above guidelines), SEATTLE PUBLIC UTILITIES (2 above guidelines), North City Water District (1 above guidelines)
Water systems
4 large systems
Residents (Census 2024)
13,276
Health-based violations since 2020
0
LAKE FOREST PARK WATER DISTRICT. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jun 2024 · LAKE FOREST PARK WATER DISTRICT
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Lake Forest Park Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Lake Forest Park's water has 1 contaminant above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
LAKE FOREST PARK WATER DISTRICT, Lake Forest Park's water system, serves 3,171 people. 3 other systems are listed for Lake Forest Park. Each system's results are listed under its own name, never added to LAKE FOREST PARK WATER DISTRICT's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for LAKE FOREST PARK WATER DISTRICT is from Jun 2024.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Washington
Lake Forest Park Water Service Areas
What these numbers actually mean for Lake Forest Park, WA
We read Lake Forest Park, WA’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 1 contaminant above EPA MCLGs
- 125 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for Lake Forest Park
Based on Lake Forest Park's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Waterdrop
G3 P600
NSF Certified:
Flow Rate
600 gpm
Daily Production
600 gpd
Highlights:
- Space-saving design
- Good contaminant reduction
- NSF-58 certified
Removes 4 contaminants:
Waterdrop
G3 P800
NSF Certified:
Flow Rate
800 gpm
Daily Production
800 gpd
Highlights:
- High water production rate
- Modern design
- No tank needed
- NSF-42, NSF-53, NSF-58, NSF-372 certified
Removes 15 contaminants:
+10 more
Chlorine, Copper, Manganese, Potassium, Selenium, Total Dissolved Solids, Nitrate, Chloride, Sodium, Strontium
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Lake Forest Park's water readings can explain
Utility-reported data for Lake Forest Park includes turbidity — the readings behind these common tap water questions. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Lake Forest Park? Public-water results do not apply to private wells. See King County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Frequently Asked Questions About Lake Forest Park Tap Water
Lake Forest Park's water has 1 contaminant above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach LAKE FOREST PARK WATER DISTRICT. For a problem with your water now (discolored water, no water, low pressure, a leak), contact LAKE FOREST PARK WATER DISTRICT directly.
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