01The verdict: is Pouslbo water safe?
Pouslbo's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (90.4/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,229 residents using groundwater (wells).
2 unresolved violations on record
EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.
See what was cited ↓Lead is well under the limit
90th-percentile lead is 4.0 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.
See the trend ↓Check back after the next refresh
EPA data updates on a rolling basis; we fold in new samples and violations every month.
Get alerts ↓Pouslbo's drinking water received a grade of A (90.4 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,229 residents using groundwater.
Lead levels were measured at 4.0 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 19 violations on record, including 4 health-based violations. 2 remain unresolved.
Pouslbo ranks #38 out of 294 cities in Washington for water quality, placing it above average in the state. Pouslbo 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, Pouslbo may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
02What's in Pouslbo's water
Every contaminant flagged in Pouslbo, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.
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. | 4.0 | 15 | ppb | Inorganic | Safe |
Cities ranked by 90th-percentile lead PF PFAS in Washington
Cities ranked by compounds detected Cu Copper in Washington
Cities ranked by 90th-percentile copper
03Pouslbo's ten-year track record
Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 19 violations on record, including 4 health-based violations. 2 remain unresolved.
All ten of the last ten years were clean — no EPA violations recorded for Pouslbo.
▲ Up 3 ppb since 1995. Latest reading: 4 ppb (1997) — 27% of the action level. Sampled at higher-risk homes (90th percentile).
04Where Pouslbo's water comes from
Pouslbo's drinking water is drawn from underground aquifers through wells.
Groundwater
Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.
Local treatment
Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.
1 system
1 water system, operated under local government ownership.
1,229 people
Residents served across Pouslbo's service area.
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 1,229 people through 1 water system.
| System name | PWSID | Population | Source |
|---|---|---|---|
| FROG POND | WA5326627 | 1,229 | Groundwater |
05How Pouslbo compares
Scores for nearby Washington cities on one line, with the average marked.
dashed line = Washington average (53/100)
Pouslbo scores 90.4/100 — above the Washington average of 53/100. It outscores 9 of 10 nearby cities. Full Washington rankings →
42.3 / 100FTacoma, WA
32.2 / 100FVancouver, WA
32.9 / 100FSpokane, WA
39.2 / 100FKent, WA
44.4 / 100ABellevue, WA
91.6 / 100
Compare all cities in the county — grades, violations, and contaminant data side by side.→
06What to do at home
Steps matched to what testing actually found in Pouslbo's water — not generic advice.
A basic carbon filter still helps
Pouslbo's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.
Compare tested filters →Flush taps & check your service line
Lead leaches from pipes as water sits. Run cold water 30 seconds before drinking (especially mornings), and ask the utility whether your address still has a lead service line.
Lead risks explained →Watch for Pouslbo alerts
We refresh EPA data monthly and surface new violations, advisories, and boil-water notices for your county on this page.
All water alerts →Frequently asked questions
Is Pouslbo, WA tap water safe to drink?
Pouslbo's water quality earned a grade of A (90.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #38 out of 294 cities tested in Washington.
What contaminants are in Pouslbo's water?
Lead was measured at 4.0 ppb (90th percentile). 19 violations are on record.
How is Pouslbo'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 Pouslbo?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Pouslbo's water come from?
Pouslbo's water is sourced from Groundwater. The city has 1 water system serving approximately 1,229 residents.
What health violations has Pouslbo's water system had?
Pouslbo has 4 health-based violations on record. The most recent violation was recorded in August 2000. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Pouslbo's groundwater at risk of contamination?
Pouslbo 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 19 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 Pouslbo's water compare to other cities?
Pouslbo ranks #38 out of 294 cities in Washington (better than 87% of state cities) and #2237 out of 15382 cities nationally (86th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Pouslbo's small water system affect quality?
Pouslbo's system serves approximately 1,229 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 19 violations on record.