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Counties → New Hampshire

Carroll County, New Hampshire

SDWIS compliance plate

Sheet NH003 · Carroll County 363 sys · 21,120 viol · #676/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-LARGE · BOOK-FULL

  • VIOL-SEVERE 91.7% flagged
  • HEALTH-LOW 18.2% health
  • RANK-UPPER #676/3254
  • PHOTO-FINISH ±0.6 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 99%
  • SYS-LARGE 363 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Coos County ( -0.6 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Carroll County ranks #676 of 3,254 counties by people served, and #6 of 10 counties in New Hampshire. See methodology · corpus placement.

Carroll County standing, lower-flagged corpus third

Flagged-system rate 91.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 18.2% 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 #676 of 3,254 · #6 of 10 in New Hampshire.

Flagged-rate neighbourhood around Carroll County

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

0% 20% 40% 60% 80% 100% Sullivan · lowest Strafford · near Carroll · this county Grafton · highest 86.2% 89.8% 90.9% 91.2% 91.7% 92.7% 94.4%

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

Water Systems

System Name Population Violations PFAS
Wolfeboro Water and Sewer 6,000 86 Clean
North Conway Water Pct 5,500 126 Clean
Lower Bartlett Water Pct 3,800 15 Clean
Conway Water and Sewer 2,745 291 -
Paradise Shores 2,060 250 -
Sanbornville Water Dept 1,425 142 -
Westward Shores Campground 1,225 8 -
Village District of Eidelweiss 1,200 45 Clean
Totem Pole Park 1,125 7 -
Mt Attitash Ski/Adventure Ctr 1,000 20 -
McDonalds Restaurant 900 35 -
Ossipee Water Dept 860 308 -
Ossipee Dunkin Donuts 840 21 -
Bear Peak at Attitash 800 89 -
River Run Condos 750 25 Clean
Camp Winaukee 650 26 -
Bartlett Village Pct 625 177 -
Bluffs RV Resort 625 24 -
McS Convenience 600 33 -
Wakefield Irving 600 8 -
Lov Water 590 263 -
Journey Church 563 12 -
Birch Hill East 550 101 -
Camp Huckins Main Sys 530 16 -
Ossipee Lake Camping Area/Old 517 18 -
Jigger Johnson Campground 500 0 -
Jackson Water Pct 500 72 -
Black Mountain Ski Area 500 3 -
Castle in the Clouds 500 74 -
Village Kitchen 500 30 -
Rockhouse Mountain 480 148 -
Camp Calumet Lutheran 450 0 -
Seasons at Attitash 440 133 -
Abenaki Ski Lodge 440 24 -
Camp North Woods 430 14 -
Camp Robin Hood Kitchen 427 44 -
Yogi Bears Camp/Glen Ellis 1 400 22 -
Geneva Point Ctr/Main Sys 400 12 -
Camp Belknap/Seniors 400 24 -
Camp Belknap/Main 400 16 -
Camp Belknap/Dining Hall 400 0 -
Mountain Vale Village MHP 388 140 -
Hales Location 385 14 -
Beaver Hollow Campground 380 53 -
Terrace Pines Camping 375 23 -
Chocorua Camping Village 375 36 -
Camp Marist/Offices 350 4 -
Camp Bernadette 350 4 -
Pierce Camp Birchmont/Cabins 350 20 -
Pierce Camp Birchmont/Kitchen 350 38 -

Compare beyond New Hampshire

Lower-flagged peers for Carroll County

Cross-state counties nearest Carroll County on flagged-system share (91.7%) and cumulative violation count (21,120). 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.