Abstract
Introduction
Purpose and Scope
Previous Investigations
Description of the Study Area
Sand and Gravel Aquifers and Ground-Water Reservoirs
Surface Water
Climate
Population
Land Use and Land Cover
Acknowledgments
Water Use
Water Supply
Public Supply
Self-Supply
Aggregate Water Use by Category
Domestic
Public Supply
Self-Supply
Commercial
Public Supply
Self-Supply
Industrial
Public Supply
Self-Supply
Agricultural and Golf-Course Irrigation
Consumptive and Non-Account Use
Electric Power Generation
Wastewater-Return Flows
Public Disposal
Wastewater Imports and Exports
Infiltration and Inflow Estimates
Self-Disposal
Total Return Flows
Water-Use Summary
Water Availability
Streamflow-Gaging Stations Used in Analysis
Method Used to Estimate Base-Flow Volume
Safe-Yield Analysis for Public-Supply Reservoirs
Evaluation of Water Availability and Basin Stress
Streamflow Depletion by Ground-Water Withdrawals
Water Budget
Inflow
Outflow
Summary and Conclusions
References Cited
Glossary
Appendix 1. SIC code estimates by minor civil division
Appendix 2. Water-Use Case Study–Cumberland, Rhode Island
1-6. Maps showing:
1. Blackstone River basin and study area, northern Rhode Island and south-central Massachusetts
2. Distribution of sand and gravel and till deposits, and ground-water reservoirs as named by the Rhode Island Water Resources Board (Rhode Island portion only) in the lower Blackstone River basin
3. Streamflow-gaging stations and public-supply reservoirs within the lower Blackstone River basin
4. Estimated population by town and subbasin in the lower Blackstone River basin, 1995–99
5. Land use in 1995 in the lower Blackstone River basin
6. Public-supply wells and surface-water-intake locations within the lower Blackstone River basin
7. Graph showing public- and self-supply water use by category in the lower Blackstone River basin for the period 1995–99: ( A ) domestic, ( B ) commercial, ( C ) industrial, and ( D ) agricultural
8–10. Maps showing:
8. Power-generation facilities within the lower Blackstone River basin
9. Outfall locations for wastewater-treatment facilities serving towns within the lower Blackstone River basin
10. National Pollution Discharge Elimination System outfalls for commercial and industrial facilities within the lower Blackstone River basin
11. Diagram showing water withdrawals (supply), use, and return flow (disposal) for the lower lackstone River basin
12. Graph showing available base flow calculated as base flow minus minimum streamflow according to two criteria, the 7-day, 10-year low flow (7Q10) and Aquatic Base Flow (ABF), for June, July, August, and September for the period 1957–99 at the streamflow-gaging station at the Branch River at Forestdale, Rhode Island (U.S. Geological Survey station number 01111500)
13. Map showing subbasin stress indicated by the ratio of water withdrawals, 1995–99, to estimated water availability, 1957–99, during August; and graphs of water availability for June, July, August, and September for the six subbasins within the lower Blackstone River basin
14–15. Graphs showing:
14. Specified daily pumping rates at Cumberland Water Department Manville well no.1, Rhode Island, 1995–99, and calculated streamflow depletion in the nearby Blackstone River
15. Streamflow depletion as a percentage of well pumping rate ( Qs / Qw * 100) for six public-supply wells with different aquifer properties and distances to the stream in the lower Blackstone River basin. Q s is the rate of streamflow depletion (cubic foot per second)and Q w is the pumping rate of the well (cubic foot per second
1. Land area and 5-year average population for each minor civil division within the lower Blackstone River basin, northern Rhode Island and south-central Massachusetts, 1995–99
2. Land area and population for minor civil divisions, water suppliers (major and minor), and wastewater-treatment facilities serving those municipalities within the lower Blackstone River basin, 1995–99
3. Total 5-year average population and population served by public-water systems and public-wastewater systems by minor civil division in the lower Blackstone River basin, 1995–99
4. Water withdrawals for public-supply wells and surface-water intakes by subbasin in the lower Blackstone River basin, 1995–99
5. Public-supply withdrawals, public-supply imports, public-supply exports, public-supply use, self-supply use, and total estimated withdrawals by minor civil division and subbasin in the lower Blackstone River basin, 1995–99
6. Agricultural, commercial, and industrial land-use area by subbasin as a percentage of total land area for the category in each minor civil division for the lower Blackstone River basin
7. Total water use, public and self-supply, by category in the lower Blackstone River basin, 1995–99
8. Agricultural coefficients used to estimate livestock water use in the lower Blackstone River basin
9. Average return flow for wastewater-treatment facilities serving communities of the lower Blackstone River basin, 1995–99
10. Average return flow for National Pollution Discharge Elimination System outfall locations for the lower Blackstone River basin, 1995–99
11. Public disposal (estimated and metered) of wastewater, including imports, exports, and infiltration and inflow, self-disposal (onsite septic estimates and metered), and total return flows for the lower Blackstone River basin, 1995–99
12. Summary of estimated water withdrawals, imports, exports, use, non-account use, consumptive use, and return flow in the lower Blackstone River basin, 1995–99
13. U. S. Geological Survey streamflow-gaging stations in the lower Blackstone River basin
14. Available base-flow volumes calculated at the 50th percentile by the PART program minus minimum streamflows determined by two criteria, the 7-day, 10-year low flow and the Aquatic Base Flow, for the Branch River at Forestdale (01111500) for June, July, August, and September for the period 1957–99
15. Safe-yield estimates and 5-year average demand for surface-water reservoirs of three municipal water suppliers in the lower Blackstone River basin, 1995–99
16. Area of sand and gravel and till deposits and percent of sand and gravel deposits within the lower Blackstone River basin
17. Summary of water availability, defined as base flow plus safe-yield estimates, for June through September in the lower Blackstone River basin, 1957–99
18. Summary of water availability, defined as base flow by aquifer type plus safe yield, for June through September in the lower Blackstone River basin, 1957–99
19. Average water withdrawal rates for the low-flow period in the lower Blackstone River basin, 1995–99
20. Summary of basin-stress ratios for June through September in the lower Blackstone River basin, 1957–99
21. Selected public-supply wells, parameters used to calculate streamflow depletion with the program STRMDEPL, and streamflow depletion as a percentage of the well pumping rate at 10, 20, and 30 days after the start of pumping
22. Long-term average annual hydrologic water budget by subbasin for the lower Blackstone River basin, 1957–99
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The citation for this report, in USGS format, is as follows:
Barlow, L.K., 2003, Estimated Water Use and Availability in the Lower Blackstone River Basin, Northern Rhode Island and South-Central Massachusetts, 1995–99: U.S. Geological Survey Water-Resources Investigations Report 03-4190, 85 p.
For more information about USGS activities in Massachusetts-Rhode Island District, visit the USGS Massachusetts-Rhode Island Home Page.
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