HARBOR SQUARE SHOPPING CENTER
PWS ID: NH1618240 · PORTSMOUTH, New Hampshire 03801
HARBOR SQUARE SHOPPING CENTER serves 43 people in PORTSMOUTH, New Hampshire using Groundwater water sources. It has 98 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.
Water Quality Snapshot: HARBOR SQUARE SHOPPING CENTER
HARBOR SQUARE SHOPPING CENTER is a private-owned non-transient non-community water system that delivers drinking water to 43 residents in PORTSMOUTH, New Hampshire (Carroll County) through 17 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 98 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 98 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.
The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.
Across New Hampshire, EPA tracks 2,453 public water systems serving 1,242,123 people, with 155,970 cumulative violations and 29,649 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 63.6 violations. HARBOR SQUARE SHOPPING CENTER's 98 violations sit above the New Hampshire average. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 17
- County
- Carroll
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 98
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 6 | 2024 |
| Nitrate | MR | 4 | 1993 |
| cis-1,2-Dichloroethylene | MR | 4 | 1993 |
| Xylenes, Total | MR | 4 | 1993 |
| DICHLOROMETHANE | MR | 4 | 1993 |
| o-Dichlorobenzene | MR | 4 | 1993 |
| p-Dichlorobenzene | MR | 4 | 1993 |
| 1,1-Dichloroethylene | MR | 4 | 1993 |
| trans-1,2-Dichloroethylene | MR | 4 | 1993 |
| 1,1,1-Trichloroethane | MR | 4 | 1993 |
| 1,2-Dichloropropane | MR | 4 | 1993 |
| Trichloroethylene | MR | 4 | 1993 |
| 1,1,2-Trichloroethane | MR | 4 | 1993 |
| Tetrachloroethylene | MR | 4 | 1993 |
| CHLOROBENZENE | MR | 4 | 1993 |
| Toluene | MR | 4 | 1993 |
| Vinyl chloride | MR | 4 | 1993 |
| 1,2-Dichloroethane | MR | 4 | 1993 |
| Styrene | MR | 4 | 1993 |
| 1,2,4-Trichlorobenzene | MR | 4 | 1993 |
| Carbon tetrachloride | MR | 4 | 1993 |
| Benzene | MR | 4 | 1993 |
| Ethylbenzene | MR | 4 | 1993 |
| Coliform (TCR) | MR | 4 | 2009 |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for HARBOR SQUARE SHOPPING CENTER.
EPA SDWIS — Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID NH1618240 on SDWISSource: EPA SDWIS Federal Reports Search
New Hampshire Drinking Water Authority
New Hampshire's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.
Find NH regulator via EPA SDWISViolation Timeline
Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.
| Year (latest) | Contaminant | Category | Count | EPA Record |
|---|---|---|---|---|
| 2024 | Lead and Copper Rule | MR | 6 | SDWIS / NH1618240 / 5000 |
| 2009 | Coliform (TCR) | MR | 4 | SDWIS / NH1618240 / 3100 |
| 1993 | Nitrate | MR | 4 | SDWIS / NH1618240 / 1040 |
| 1993 | cis-1,2-Dichloroethylene | MR | 4 | SDWIS / NH1618240 / 2380 |
| 1993 | Xylenes, Total | MR | 4 | SDWIS / NH1618240 / 2955 |
| 1993 | DICHLOROMETHANE | MR | 4 | SDWIS / NH1618240 / 2964 |
| 1993 | o-Dichlorobenzene | MR | 4 | SDWIS / NH1618240 / 2968 |
| 1993 | p-Dichlorobenzene | MR | 4 | SDWIS / NH1618240 / 2969 |
| 1993 | 1,1-Dichloroethylene | MR | 4 | SDWIS / NH1618240 / 2977 |
| 1993 | trans-1,2-Dichloroethylene | MR | 4 | SDWIS / NH1618240 / 2979 |
| 1993 | 1,1,1-Trichloroethane | MR | 4 | SDWIS / NH1618240 / 2981 |
| 1993 | 1,2-Dichloropropane | MR | 4 | SDWIS / NH1618240 / 2983 |
| 1993 | Trichloroethylene | MR | 4 | SDWIS / NH1618240 / 2984 |
| 1993 | 1,1,2-Trichloroethane | MR | 4 | SDWIS / NH1618240 / 2985 |
| 1993 | Tetrachloroethylene | MR | 4 | SDWIS / NH1618240 / 2987 |
How HARBOR SQUARE SHOPPING CENTER Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | HARBOR SQUARE SHOPPING CENTER | New Hampshire avg | Federal benchmark |
|---|---|---|---|
| Total violations | 98 | 63.6 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 0 | 12.1 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 45.1% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 43 | 506 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,453 regulated public water systems in New Hampshire.
Federal MCL reference — Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
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Has PFAS been detected in HARBOR SQUARE SHOPPING CENTER water? ▼
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Related Data for New Hampshire
Read our methodology — how this data is sourced, computed, and verified.