Estimated public-supply water withdrawals in Puerto Rico, 2020
Dates
Publication Date
2023
Time Period
2020
Citation
Molina, W.L., Irizarry-Ortiz, M., Santiago, M., Pazmino-Hernandez, M., and Kahlid, S., 2019, Estimated public-supply water withdrawals and domestic water use in Puerto Rico (ver. 2.0, March 2023): U.S. Geological Survey data release, https://doi.org/10.5066/P9HWON2W.
Summary
This data release consists of Microsoft Excel workbooks related to a cooperative project between the U.S. Geological Survey (USGS) and the Puerto Rico Aqueduct and Sewer Authority (PRASA) to estimate public-supply water withdrawals for the year 2020. Daily raw-water inflow volume to each PRASA water-treatment plant and water pumped from PRASA public-supply wells on the island in 2020, as well as coordinate information for these facilities were provided by PRASA. The raw data are not publicly available owing to restrictions (sensitivity concern). Contact PRASA directly for more information. Per capita water use derived from domestic-delivery data for 2016 was used to estimate withdrawals from non-PRASA community water supply systems [...]
Summary
This data release consists of Microsoft Excel workbooks related to a cooperative project between the U.S. Geological Survey (USGS) and the Puerto Rico Aqueduct and Sewer Authority (PRASA) to estimate public-supply water withdrawals for the year 2020.
Daily raw-water inflow volume to each PRASA water-treatment plant and water pumped from PRASA public-supply wells on the island in 2020, as well as coordinate information for these facilities were provided by PRASA. The raw data are not publicly available owing to restrictions (sensitivity concern). Contact PRASA directly for more information. Per capita water use derived from domestic-delivery data for 2016 was used to estimate withdrawals from non-PRASA community water supply systems for 2020 due to The lack of of domestic-delivery data for this year. This choice does not likely introduce major errors in the total island-wide water withdrawals as non-PRASA withdrawals are on the order of 1–2 percent of the total withdrawals. The total annual volume withdrawn from PRASA and non-PRASA public-supply wells and surface-water intakes was aggregated by municipality and PRASA public water system identification (PWSID) to obtain total surface-water and groundwater withdrawals for PRASA and non-PRASA systems. In 2020, the total amount of public-supply water withdrawn in Puerto Rico was estimated at 602 million gallons per day (Mgal/d) from freshwater sources. Surface-water withdrawals accounted for 537 Mgal/d (89 percent) and groundwater withdrawals accounted for 65 Mgal/d (11 percent).
Disclaimer: In estimating public-supply withdrawals for 2016 and prior years, surface-water withdrawals for each PRASA water treatment plant (WTP) were assigned to a single intake location. For 2017-20, surface-water withdrawals for each PRASA water treatment plant have been split up across multiple intakes based on information provided by PRASA in 2022. This may have affected the total withdrawals by municipality and PWSID. For this reason, we discourage evaluating trends and making comparisons at the municipality and PWSID level between 2017–20 and previous years.
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Landingpage2020.xml “Landingpage2020.xml” Original FGDC Metadata
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Purpose
Public-supply water withdrawal totals estimated for 2020 are compiled as part of an ongoing effort between the Puerto Rico Aqueduct and Sewer Authority (PRASA) and the U.S Geological Survey (USGS), Caribbean-Florida Water Science Center to estimate public-supply water withdrawals in Puerto Rico, annually since 2014. Data are provided in two tables (1 and 2) and described in separate metadata files. Table 1 provides estimated 2020 public-supply water withdrawal totals by water source and municipality for PRASA and non-PRASA systems. Table 2 provides estimated 2020 public-supply water withdrawal totals by water source and PRASA public water system identification.
