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Counties → California

Alpine County, California

SDWIS compliance plate

Sheet CA003 · Alpine County 40 sys · 265 viol · #1802/3254

VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 70.0% flagged
  • HEALTH-MID 22.6% health
  • RANK-MID #1802/3254
  • PHOTO-FINISH ±0.4 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 93%
  • SYS-MID 40 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Alameda County (+ 0.4 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Alpine County ranks #1,802 of 3,254 counties by people served, and #55 of 58 counties in California. See methodology · corpus placement.

Alpine County standing, lower-flagged corpus third

Flagged-system rate 70.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 22.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,802 of 3,254 · #55 of 58 in California.

Flagged-rate neighbourhood around Alpine County

Lowest/highest poles plus in-state counties nearest Alpine County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Alpine · this county · lowest Lassen · near Mendocino · near 70% 70.4% 72.7% 74.9% 77.6% 97.1%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Kirkwood Meadows Public Utility District 7,851 3 Clean
Hope Valley Cg 3,560 2 -
Bear Valley Mountain Resort 3,500 0 -
Crystal Springs Cg 1,118 0 -
Ca State Parks - Grover Hot Springs 1,002 3 -
Lake Alpine Water Company 625 50 -
Kirkwood Sunrise Grill 500 0 -
Markleeville Water Co. 175 33 -
Diamond Valley School 100 2 -
Sierra Pines Mobile Home Park 70 19 -
Sorenson S Resort 60 4 -
Camp Liahona 53 1 -
Lake Alpine Rec. Area 50 26 -
Woodfords Station 50 8 -
Woodfords Mutual Water Company 50 13 -
Pacific Valley Campground 50 2 -
Caples Lake Cg 35 1 -
Alpine Early Learning Center 35 1 -
Carson River Resort 33 0 -
Shay Creek HOA 32 25 -
Sorenson S HOA 30 24 -
Alpine Co Community Development 30 2 -
Highland Lakes #2 26 0 -
Turtle Rock County Park 25 5 -
Caples Lake Resort 25 6 -
Lake Alpine Improvement Association 25 1 -
Hope Valley Resort 25 26 -
Bloomfield Cg #1 25 1 -
Highland Lks #1 25 1 -
Woods Lake Rec. Area 25 1 -
Alpine County Health and Human Services 25 0 -
Camp Peaceful Pines 25 0 -
Pg&e Middle Blue Lakes C.g. 25 1 -
Pg&e Lower Blue Lakes C.g. 25 2 -
Pg&e Upper Blue Lakes C.g. 25 2 -
Pg&e Upper Blue Dam Site Expansion Cg 25 0 -
Sand Flat # 1 25 0 -
Sand Flat # 3 25 0 -
Sand Flat # 4 25 0 -
Sand Flat # 5 25 0 -

Compare beyond California

Lower-flagged peers for Alpine County

Cross-state counties nearest Alpine County on flagged-system share (70.0%) and cumulative violation count (265). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.