CITY REPORT WA

Fall City, WA Water Safety: 85/100 (2026)

1 ZIP code · 9 water systems · Updated 2026-06-03

Tap water in Fall City, WA scores well — low violation counts, above-average safety grade.

How Fall City Compares

Fall City85/100
Washington avg78/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
9
Water Systems
0
ZIPs with Violations
A · 85
Avg Safety Score
Zone 3
Radon Risk (Low)
$1.0M
Median Home Value
$1,200
Est. Remediation (0.1% of home value)

Key Facts for Fall City Residents

  • Average lead level: 0.001 mg/L.
  • Homes built before 1986: 59% — older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 8.82.

Fall City's Water Providers

Federal drinking water records identify 9 systems in Fall City, WA. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations — so service conditions are not uniform city-wide.

Sammamish Plateau Water & Sewer
Serves ~79,362 people
85
/100
Issaquah Water System
Serves ~43,584 people
85
/100
King County Water District 119
Serves ~3,796 people
85
/100

Overview

We track water quality and home safety data for 1 ZIP code in Fall City, Washington (population ~4,632), covering 9 community water systems serving approximately 132,580 people region-wide.

No EPA violations recorded across any ZIP codes in Fall City — an excellent indicator of water quality.

Home Safety Score

Average Home Safety Score for Fall City: A (85/100)

The score combines three factors:

Factor What It Measures
Water Quality EPA violations and compliance history
Lead Levels 90th percentile lead concentration vs EPA action level
Radon Risk EPA radon zone classification

Water Sources

Fall City water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

Areas with No Violations

ZIP Code Safety Score System Population
98024 A Fall City Water District #127 2,987

All ZIP Codes in Fall City

Data Sources

Updated daily.

Fall City Community Health Snapshot

9.7%
Asthma (US: 9.8%)
7.3%
Diabetes (US: 10.4%)
14.7%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.7% ↓
Diabetes 7.3% ↓
Mental Health 14.7% ↓

Vertical line = national average. Above national · Below national

Fall City Infrastructure Age

1987
Median Build Year
59%
Built Before 1986
17%
Built Before 1970
Copper
Likely Pipe Material

With 59% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

For residents trying to assess tap water risk in Fall City, the median build year of 1987 is the starting context. It signals that a majority of homes were constructed before 1986 — the year federal rules prohibited lead solder in new plumbing — and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.

1987
Median Year Built
59%
Pre-1986 (Lead Paint Risk)
17%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (17%) 1970–1986 (42%) Post-1986 (41%)

Over half of homes in Fall City were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Fall City

Placing remediation in the context of Fall City's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.

Median Home Value
$1.0M
Est. Remediation
$1,200
Remediation as % of home value 0.1%

Remediation costs in Fall City are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 115% above the Washington average.

Fall City: Lead Risk & Vulnerable Populations

59%
Homes Built Before 1986
0.001
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

59% of Fall City housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark — household-level confirmation through a draw-test kit fits the local picture.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Fall City: Flood History & Water Damage Risk

Flood exposure in Fall City is meaningful by NFIP measures — 58 claims on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.

58
Total FEMA Flood Claims
$18,230
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones
~3
Est. Claims/Year

Fall City has a moderate flood history with 58 FEMA claims averaging $18,230 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,200</strong> remediation cost per household.

Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.

Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.

Frequently Asked Questions

Is the water safe to drink in Fall City, WA?
Fall City has an average water safety score of 85/100 (Grade A). No EPA violations on record. Check individual ZIP code reports for details specific to your neighborhood.
Does Fall City water have lead?
The average 90th-percentile lead level in Fall City is 0.001 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home — testing is recommended especially in older properties.
How does Fall City compare to Washington average?
Fall City has an average water safety score of 85/100, which is above the Washington state average of 78/100.
How many water systems serve Fall City?
Fall City is served by 9 public water systems across 1 ZIP code, serving approximately 4,632 people.
How much does it cost to fix water issues in Fall City?
Estimated remediation costs in Fall City average $1,200 per household, ranging from $800 to $1,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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