Scotland

Monitoring and Reporting: 2 violations, Oct 2020 to Dec 2023. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

Contaminants on the record: Total Haloacetic Acids (HAA5), TTHM (Total Trihalomethanes).

Monitoring and Reporting: 1 violation, Jan 2023 to Jun 2024. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

Contaminant on the record: Nitrate-Nitrite (Combined).

Maximum Contaminant Level Violation, health-based: 7 violations, Apr 2025 to Jun 2026. A sample exceeded the maximum contaminant level EPA allows in drinking water.

Monitoring and Reporting: 3 violations, Jul 2023 to Dec 2023. The system did not complete required monitoring, or did not report the results on time. This does not show that a contaminant was found.

Contaminants on the record: Gross Alpha, Excl. Radon and U, Combined Uranium, Combined Radium (-226 and -228).

Gross Alpha, Excl. Radon and U, health effects: Alpha-emitting radionuclides accumulate in bone and soft tissue, delivering sustained internal radiation doses that increase lifetime cancer risk. There is no established safe threshold for ionizing radiation. Individual contributors such as radium-226 and polonium-210 have their own MCLs; gross alpha serves as a cost-effective screening tool that triggers more specific radionuclide analysis when exceeded. Limit: 15 pCi/L (excluding radon and uranium)

Combined Uranium, health effects: Uranium poses both radiological and chemical health risks. Chronic exposure is primarily associated with kidney damage due to its chemical toxicity as a heavy metal. The radiological risk — increased cancer probability — is also present but secondary to the nephrotoxic concern at drinking water concentrations. There is no safe threshold for radiation exposure. Limit: 0.030 mg/L (30 µg/L)

Combined Radium (-226 and -228), health effects: Radium is a bone-seeking radionuclide that accumulates in skeletal tissue after ingestion. Long-term exposure increases the risk of bone cancer and leukemia. There is no safe threshold for ionizing radiation — the MCL is set at a level balancing risk reduction with treatment feasibility. Children are particularly vulnerable due to higher rates of bone growth and calcium uptake. Limit: 5 pCi/L (combined Ra-226 and Ra-228)

Reporting Violation: 1 violation, Oct 2024 to Sep 2025. The system did not report required information on time.

What the rule requires: The 2021 LCRR updated the 1991 LCR with mandatory lead service line inventories and replacement planning, a new 'trigger level' at 10 ppb requiring optimization, and strengthened public education. The 2024 Lead and Copper Rule Improvements (LCRI) further requires replacing all lead service lines within 10 years.