Pure Water Monterey’s product water meets or exceeds all state and federal standards for drinking water. The purified water undergoes constant, rigorous testing before being released back into the environment through groundwater replenishment. With health and human safety as our top priority, the following safeguards and protocols are in place to ensure the integrity of our treatment processes and the quality of our product water.
The permits required to operate Pure Water Monterey include continuous water quality sampling and monitoring provisions. This testing is conducted by certified laboratory and operational personnel and is outlined in Monitoring and Reporting Program No. R3-2019-0116 (PDF) issued by the California Regional Water Quality Control Board, Central Coast Region.
Water quality is monitored throughout the treatment processes, before product water is injected into the aquifer, and at various locations in the Seaside Groundwater Basin. Three types of sampling and monitoring occur:
Real time, Automated Sampling Online readings provide continuous data on water quality using sensors. Our operators monitor this data 24 hours a day, 356 days a year. That’s more than 20,000,000 digital data points each year for Pure Water Monterey alone.
Instantaneous, Grab Sampling Water quality is also verified by taking or grabbing real samples. Samples undergo thorough testing in our accredited lab and generate almost 16,000 data points each year.
Composite Sampling Composite samples are collected over time, either by continuous sampling or by mixing discrete samples. A composite sample represents the average water characteristics during the compositing period.
If the water does not meet water quality requirements, the plant would be shut down immediately.
Microbiological Methods for Non-Potable Water and Sewage Sludge
Inorganic Constituents in Non-Potable Water
Microbiological Methods for Ambient Water
Strict standards require annual accreditation reviews including onsite inspections and proficiency testing studies. ELAP auditors also make unannounced visits to ensure all regulatory codes are being followed.
Pure Water Monterey was reviewed, approved, and permitted by the California Department of Public Health, the Division of Drinking Water at the State Water Resources Control Board, and the Central Coast Regions of the California Regional Water Quality Control Board, to ensure public health, water quality, and environmental compliance before allowing injection into the Seaside Groundwater Basin. These regulatory bodies will continue to monitor Pure Water Monterey through the life of the project using a transparent reporting system. See the tab on Water Quality Reports.
Monterey One Water staff prepare and submit monthly, quarterly, semi-annual, and annual water quality reports to regulators at the California Water Boards. These reports are reviewed by the Division of Drinking Water at the State Water Resources Control Board and the Central Coast Region of the California Regional Water Quality Control Board who have final approval of the continued production and injection of Pure Water Monterey’s purified water. Members of the public can access this data by searching Pure Water Monterey in the following databases: