Public drinking water source areas (PDWSAs) are surface water catchments and groundwater areas that provide drinking water to cities, towns and communities throughout the state. PDWSAs are proclaimed under the Metropolitan Water Supply, Sewerage, and Drainage Act 1909 or the Country Areas Water Supply Act 1947. Groundwater sources are normally referred to as underground water pollution control areas or water reserves. Surface water sources are generally referred to as catchment areas. The PDWSA dataset is used by the Department of Water and Environmental Regulation in policy decision-making and for providing advice about protecting drinking water quality when land uses and activities are proposed in PDWSAs. This dataset was formerly known as Public Drinking Water Source Areas (DOW-007)

The Community Groundwater Level Monitoring Program is a voluntary, locally driven effort designed to strengthen drought resilience and fill critical groundwater data gaps across the region. The program is built around three complementary components: domestic wells, schools, and small water systems. Community members with domestic wells can participate by collecting simple water-level measurements using equipment and training provided free of charge by the Department of Water Resources (DWR). In exchange, participants agree to submit their data to DWR’s public groundwater databases, helping create a more complete and transparent picture of groundwater conditions in areas where monitoring is limited. The school and small water system components support implementation of SB 552, which requires improved drought planning and early warning capabilities for vulnerable water supplies. By partnering with schools and small water systems to install dedicated monitoring equipment and collect consistent data, the program provides timely information that can be used for drought preparedness, resource planning, and community outreach. Together, these three components form a flexible, community-centered network that expands groundwater understanding and supports long-term water reliability for all.

The Drinking Water Mapping Application (DWMA) is a web-based geographic information system (GIS) that enhances the capabilities to identify major contaminant risks to public drinking water supplies. The DWMA includes functionality for both surface and ground-water based public water systems, including a well visualization tool (under development), non-point source and non-NHD data layer analyses, and multi-program analyses.

The Community Groundwater Level Monitoring Program is a voluntary, locally driven effort designed to strengthen drought resilience and fill critical groundwater data gaps across the region. The program is built around three complementary components: domestic wells, schools, and small water systems. Community members with domestic wells can participate by collecting simple water-level measurements using equipment and training provided free of charge by the Department of Water Resources (DWR). In exchange, participants agree to submit their data to DWR’s public groundwater databases, helping create a more complete and transparent picture of groundwater conditions in areas where monitoring is limited. The school and small water system components support implementation of SB 552, which requires improved drought planning and early warning capabilities for vulnerable water supplies. By partnering with schools and small water systems to install dedicated monitoring equipment and collect consistent data, the program provides timely information that can be used for drought preparedness, resource planning, and community outreach. Together, these three components form a flexible, community-centered network that expands groundwater understanding and supports long-term water reliability for all.

The State Water Quality Assessment and Monitoring Project (SWAMP) is a state wide project responsible for collecting, analysing and reporting the ambient water quality condition of rivers in NSW. SWAMP collects water quality data monthly to: assess ambient river water quality in terms of electrical conductivity, temperature, turbidity, total suspended solids, pH, dissolved oxygen, phosphorus and nitrogen at selected sites across NSW provide high quality, long term, statistically robust data to enable condition and trend reporting provide data to enable measures of compliance with state and national guidelines and standards, and provide a framework of river water quality monitoring across NSW upon which other programs can build. Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.

The Drinking Water State Revolving Fund (DWSRF) National Information Management System collects information that provide a record of progress and accountability for the program. Reports on DWSRF activity are currently available for state fiscal years (July-June) 1996 through 2010.

SDWIS/State is a data system that EPA is developing for states that will improve the quality of drinking water information.

SDWIS/FED is EPA's national regulatory compliance database for the drinking water program. It includes information on the nation's 160,000 public water systems and violations of drinking water regulations. Access aggregated information on all violations reported in an EPA region, state, and county since 1993 using the MS Excel PivotTables. These multidimensional tables contain aggregated information on water systems; violations reported by violation type and by contaminant/rule, and GPRA data, for each year since 1993; and current Envirofacts data. Sort, categorize, and analyze the data across several dimensions.

SDWIS/FED is EPA's national regulatory compliance database for the drinking water program. It includes information on the nation's 160,000 public water systems and violations of drinking water regulations. Access aggregated information on all violations reported in an EPA region, state, and county since 1993 using the MS Excel PivotTables. These multidimensional tables contain aggregated information on water systems; violations reported by violation type and by contaminant/rule, and GPRA data, for each year since 1993; and current Envirofacts data. Sort, categorize, and analyze the data across several dimensions.