New River Valley Water Supply Plan Prepared by: New River Valley Planning District Commission November 2010 Prepared for: Floyd County Giles County Montgomery County Pulaski County City of Radford Town of Dublin Town of Floyd Town of Glen Lyn Town of Narrows Town of Pearisburg Town of Pembroke Town of Rich Creek TABLE OF CONTENTS LIST OF TABLES ............................................................................................................................. iv LIST OF FIGURES ........................................................................................................................... vi EXECUTIVE SUMMARY ................................................................................................................. vii INTRODUCTION ............................................................................................................................... 1 Regulation Background .............................................................................................................. 1 New River Valley Water Supply Plan Background .................................................................... 2 EXISTING WATER SOURCE INFORMATION ..................................................................................... 4 Community Water Systems Using Ground Water - 9 VAC 25-780-70.B .................................. 4 Community Water Systems Using Surface Water Reservoirs - 9 VAC 25-780-70.C ................ 9 Community Water Systems Using Stream Intake - 9 VAC 25-780-70D ................................. 10 Self-supplied Nonagricultural Users >300,000 Gallons per Month from Surface Water Sources- 9 VAC 25-780-70E .................................................................................................... 13 Self-supplied Nonagricultural Users >300,000 Gallons per Month from Ground Water Sources- 9 VAC 25-780-70F .................................................................................................... 13 Water Purchased Outside Local Boundaries - 9 VAC 25-780-70G ......................................... 15 Water Available for Purchase beyond Local Boundaries - 9 VAC 25-780-70H ...................... 17 Self-Supplied Agricultural Users <300,000 Gallons per Month - 9 VAC 25-780-70I ............. 17 Self-Supplied Nonagricultural Users <300,000 Gallons per Month - 9 VAC 25-780-70J ....... 19 Summary of Findings from Wellhead and Source Water Protection Programs - 9 VAC 25-780- 70K ............................................................................................................................................ 20 EXISTING WATER USE INFORMATION .......................................................................................... 22 Populations Served by Community Water Systems and Withdrawal Statistics – 9 VAC 25- 780-80.B.1, B.2, B.3, and B.4 ................................................................................................... 22 Peak Day Water Use by Month – 9 VAC 25-780-80.B.5 ......................................................... 25 Self-supplied Nonagricultural Users >300,000 Gallons per Month within Service Areas – 9 VAC 25-780-80.B.6 .................................................................................................................. 27 Self-supplied Agricultural Users >300,000 Gallons per Month within Service Areas – 9 VAC 25-780-80.B.7 ........................................................................................................................... 28 Self-supplied Nonagricultural Users <300,000 Gallons per Month within Service Areas – 9 VAC 25-780-80.B.8 .................................................................................................................. 28 Estimate of the Disaggregated Amounts of Water Used – 9 VAC 25-780-80.B.9 .................. 28 Existing In-stream Beneficial Uses – 9 VAC 25-780-80.B.10 ................................................. 29 Self-supplied Nonagricultural Users >300,000 Gallons per Month Outside Service Areas – 9 VAC 25-780-80.C ..................................................................................................................... 30 Self-supplied Agricultural Users >300,000 Gallons per Month Outside Service Areas – 9 VAC 25-780-80.D .............................................................................................................................. 30 Self-supplied Nonagricultural and Agricultural Users <300,000 Gallons per Month of Ground Water Outside Service Areas – 9 VAC 25-780-80.E ............................................................... 31 Summary of Daily and Annual Water Withdrawals ................................................................. 33 New River Valley Water Supply Plan i Table of Contents EXISTING RESOURCE INFORMATION ............................................................................................ 34 Geologic, Hydrologic, and Meteorological Data – 9 VAC 25-780-90A .................................. 34 State or Federal Listed Threatened or Endangered Species or Habitats of Concern - 9 VAC 25- 780-90B.1.................................................................................................................................. 38 Anadromous, Trout, and Other Significant Fisheries – 9 VAC 25-780-90B.2 ........................ 44 River Segments with Recreational Significance, Including State Scenic River Status - 9 VAC 25-780-90B.3 ............................................................................................................................ 48 Site of Historic or Archaeological Formations – 9 VAC 25-780-90B.4 .................................. 49 Unusual Geologic Formations or Special Soil Types – 9 VAC 25-780-90B.5 ........................ 52 Wetlands – 9 VAC 25-780-90B.6 ............................................................................................. 56 Riparian Buffers and Conservation Easements – 9 VAC 25-780-90B7 ................................... 58 Land Use and Land Coverage – 9 VAC 25-780-90B.8 ............................................................ 62 Impaired Streams and the Type of Impairment – 9 VAC 52-780-90B.9 .................................. 63 Locations of Point Source Dischargers – 9 VAC 25-780-90B.10 ............................................ 66 Other Potential Threats to Existing Water Quantity and Quality - 9 VAC 25-780-80B.11 ..... 67 PROJECTED WATER DEMAND INFORMATION ............................................................................. 69 Population Projections - 9 VAC 25-780-100A ......................................................................... 69 Projected Water Demand - 9 VAC 25-780-100B, C, D.1, D.2, D.4, and D.5 .......................... 70 Estimated Water Demand on an Average Monthly and Annual Basis - 9 VAC 25-780-100D.3 ................................................................................................................................................... 83 Projection of Water Demand for Existing and Proposed Self-Supplied Nonagricultural Users >300,000 gallons per month - 9 VAC 25-780-100E ................................................................ 84 Projection of Water Use for Existing and Projected Self-Supplied Agricultural Users >300,000 gallons per month - 9 VAC 25-780-100F ................................................................................. 85 Projection of Water Use for Existing and Projecting Self-Supplied Nonagricultural and Agricultural Users <300,000 gallons per month - 9 VAC 25-780-100G ................................. 85 Information Developed Pursuant to 9 VAC 25-780-140G - 9 VAC 25-780-100H .................. 85 Explanation of Projected Needs for Domestic Consumption, In-Stream Uses, and Economic Development - 9 VAC 25-780-100I ......................................................................................... 86 WATER DEMAND MANAGEMENT ................................................................................................. 87 Conservation Management Review .......................................................................................... 87 Information Describing More Efficient Water Use Practices - 9 VAC 25-780-110A.1 .......... 87 Information Describing Water through the Reduction of Use - 9 VAC 25-780-110A.2 ......... 88 Information Describing Practices to Reduce Unaccounted for Water Loss - 9 VAC 25-780- 110A.3 ....................................................................................................................................... 88 Current Conservation Practices, Techniques, and Technologies - 9 VAC 25-780-110B ......... 89 DROUGHT RESPONSE PLAN.......................................................................................................... 90 Drought Response and Contingency Plan - 9 VAC 25-780-120.1 ........................................... 90 Drought Stages - 9 VAC 25-780-120.2 .................................................................................... 91 Drought Ordinances – 9 VAC 25-780-120.3 ............................................................................ 93 New River Valley Water Supply Plan ii Table of Contents STATEMENT OF NEEDS AND ALTERNATIVES ............................................................................... 94 Statement of Need - 9 VAC 25-780-130A ............................................................................... 94 Analysis of Alternatives - 9 VAC 25-780-130B....................................................................... 94 APPENDIX 1- LARGE SELF-SUPPLIED