County NN031 County, Navajo Nation
SDWIS compliance plate
Sheet NN031 · County NN031 County 29 sys · 3,615 viol · #1454/3254
VIOL-SEVERE · HEALTH-LOW · RANK-MID · GAP-SOLO · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 2.9% health
- RANK-MID #1454/3254
- GAP-SOLO No peers
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 93%
- SYS-SMALL 29 systems
- BOOK-FULL 7/7 fields
According to EPA SDWIS county population served used on /counties, County NN031 County ranks #1,454 of 3,254 counties by people served, and #2 of 9 counties in Navajo Nation. See methodology · corpus placement.
County NN031 County standing, mid-flagged corpus third
Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 2.9% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,454 of 3,254 · #2 of 9 in Navajo Nation.
Water Systems
Compare beyond Navajo Nation
Mid-flagged peers for County NN031 County
Cross-state counties nearest County NN031 County on flagged-system share (100.0%) and cumulative violation count (3,615). 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.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
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.