County profile · EPA SDWIS + UCMR5
Lancaster County, Virginia
38 SDWIS-listed public water systems serve 8,199 people in Lancaster County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 38
- SDWIS water systems Larger third of counties
- 1,419
- Total violations Middle third of counties
- 92.1%
- SDWIS systems w/ a violation Lower third of counties
- -
- UCMR5 PFAS (none tested) No UCMR5 tests
SDWIS compliance plate
Sheet VA103 · Lancaster County 38 sys · 1,419 viol · #2502/3254
VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST
- VIOL-SEVERE 92.1% flagged
- HEALTH-LOW 15.1% health
- RANK-LOWER #2502/3254
- PHOTO-FINISH ±0.2 pp
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 100%
- SYS-SMALL 38 systems
- BOOK-MOST 6/7 fields
Nearest flagged-rate peer: Campbell County (+ 0.2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Lancaster County ranks #2,502 of 3,254 counties by people served, and #71 of 95 counties in Virginia. See methodology · corpus placement.
Lancaster County standing, lower-flagged corpus third
Flagged-system rate 92.1% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 15.1% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Lancaster County . Population served ranks #2,502 of 3,254 · #71 of 95 in Virginia.
Flagged-rate neighbourhood around Lancaster County
Lowest/highest poles plus in-state counties nearest Lancaster County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond Virginia
Lower-flagged peers for Lancaster County
Cross-state counties nearest Lancaster County on flagged-system share (92.1%) and cumulative violation count (1,419). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.