Louisville Water Company Wellhead Protection Plan Update

Transcription

1 May 1, S. Third Street Louisville, KY

2 Table of Contents ATTACHMENT 1 LOCATION OF COLLECTOR WELLS Location of the Collector Wells 1-1 Figure 1.1 Location of the Wellhead Protection Area 1-2 Figure 1.2 Construction of the Collector Wells 1-3 Figure 1.3 Construction of the Collector Wells and the Tunnel 1-4 ATTACHMENT 2 WATER WITHDRAWAL RATES Water Withdrawal Rates 2-1 Water Quality 2-1 Figure 2-1 Water Quality of Tunnel/Well System Since 11/30/ Table 2-2 Historical Source Water Quality Results 2-2 ATTACHMENT 3 WELL LOGS AND OTHER INFORMATION Well Logs and Other Information 3-1 General Construction Diagram 3-2 ATTACHMENT 4 LOCAL PLANNING TEAM Local Planning Team Members 4-1 Delineation of the Wellhead Protection Areas 4-2 Page i

3 ATTACHMENT 5 DELINEATION OF WHPA Delineation of the Wellhead Protection Areas 5-1 Delineation Report, DS&A attached ATTACHMENT 6 MAP OF THE WHPA Map of the Wellhead Protection Areas 6-1 ATTACHMENT 7 POTENTIAL CONTAMINANTS 7.1 Potential Contaminants Identification Map 7-1 Figure 7.1 Location of the WHPA, Collector Wells, Surface Water, and Results of the Risk Analysis Classification of Potential Contaminant Properties 7-4 Table General Location of Property Types 7-4 Table Classification of Potential Contaminant Properties 7-5 Figure Percentage of Properties in the WHPA 7-6 Table Commercial Property Types and Locations 7-8 Figure Map of the Types of Land Use within the WHPA 7-8 Table Commercial Properties General Overview of Potential Contaminant Sources Point Source Pollutants 7-10 Facility Records Data 7-10 Table Listing of Sites with Facility Records 7-11 Water Wells 7-12 Figure Locations and Types of Water Wells 7-12 Table Water Wells Found within the WHPA 7-13 Table Well Label Designations 7-19 Page ii

4 Heating Oil Tanks 7-19 Table Heating Oil Tanks within the WHPA 7-20 Underground and Above Ground Storage Tanks 7-20 Table Location of Heating Oil Tanks, Underground Storage Tanks, And Above Ground Storage Tanks 7-20 Medical Facilities 7-21 Figure Map of the Medical Facilities within the WHPA 7-21 Toxic Chemicals 7-21 Figure Map of the Medical Facilities within the WHPA 7-21 Figure Location of the Sites with Toxic Materials Storage 7-21 Table Toxic Chemicals Stored with the WHPA 7-22 Table Sites with Toxic Chemical Storage 55 gallons 7-23 Figure Graph Showing Disbursement of Toxic Chemical Sites Per Property Type 7-25 Swimming Pools 7-25 Table Locations of Known Swimming Pools and Hot Tubs 7-26 Figure Location of the Swimming Pools and Hot Tubs 7-28 Figure Distribution of Swimming Pools and Hot Tubs 7-29 Natural Gas Pipelines General Overview of Potential Contaminant Sources Non-Point Source Pollution 7-30 Septic Systems 7-30 Table Septic Systems in the WHPA 7-31 Table Percentage of Distribution of Septic Systems by WHPA 7-40 Figure Location of the Septic Systems within the WHPA 7-40 Table Distribution of Septic Systems within the WHPA 7-41 Lawn Care 7-41 Table Percentage of Lawn Care Professional Maintenance Per WHPA 7-42 Page iii

5 Pest Control 7-42 Figure Lawn Care Usage in the WHPA 7-42 Marinas 7-43 Table Locations of Marinas within the WHPA 7-44 Figure Location of Boat Docks within the WHPA 7-44 Road Maintenance and Salt Usage 7-45 Poor Housekeeping/Debris 7-45 Figure Area of High Salt Usage in the WHPA 7-45 Figure Location of Sites with Poor Housekeeping 7-45 Table Table Distribution of Properties with Poor Housekeeping Practices by Property Type 7-46 Distribution of Properties with Poor Housekeeping Practices within the WHPAs 7-46 Restaurants 7-47 Table Distribution of Restaurants within the WHPA 7-47 Figure Location of Restaurants within the WHPA 7-47 Floods 7-47 Figure Map of the Potential Flood Areas of the WHPA 7-48 Table Distribution of Properties That May Flood During a Flood Event 7-49 Construction 7-49 Figure Construction Areas within the WHPA 7-49 Population Density 7-49 Figure Areas of Higher Population Density within the WHPA Site Interviews 7-50 Residential Properties 7-50 Figure Example of Postcard Information Request 7-50 Postcard and Flyer 7-50 Figure Areas of Delivery of Postcards 7-50 Page iv

6 Commercial, Government, Agriculture, and Other Properties 7-51 Table Sites Slated for Site Interviews Risk/Susceptibility Analysis 7-58 Table General Land use Criteria for Susceptibility 7-59 Table Risk Values for Land Use Activities 7-59 Contaminant Value 7-60 Table Values Used in Proximity Rating 7-60 Hydrologic Sensitivity Value 7-60 Other Factors 7-60 Table Contaminant Value Rating for Potential Contaminant Sources Land Use Activities 7-62 Risk/Susceptibility Analysis Table 7-64 Table Contaminant Rating and Property Risk 7-64 Review, Modification, and Update Procedures 7-65 Additional Tables 7-66 Water Wells within the WHPA 7-66 Heating Oil Tanks 7-71 Medical, Restaurants, Agriculture, and Other Facilities 7-73 Toxic Material Storage 7-74 Swimming Pools and Hot Tubs 7-78 Septic Systems 7-80 Potential Flood Properties 7-89 Properties that Use Lawn Care/Pesticides 7-97 Marinas and Boat Docks Sites with Poor Housekeeping Risk/Susceptibility Analysis Page v

7 ATTACHMENT 8 MANAGEMENT STRATEGIES 8.1 Introduction 8-1 Management Committee General Management Strategies 8-2 Table Management Strategies Discussed by the Management Committee Existing Contaminant Source Management Programs 8-5 Table Current Regulations or Practices Operating to the Benefit of the WHPP Current Zoning within the WHPA WHPA Protection Levels 8-10 Table WHPA Protection and Emergency Response Levels Prioritization of Potential Contaminants 8-12 Table Priority Ranking of General Potential Contaminants 8-12 Table High and Medium Priority Contaminants Aboveground and Underground Heating Oil Tanks 8-15 Table Location of Heating Oil Tanks per WHPA 8-16 Modes of Contamination 8-17 Existing Laws and Regulations 8-17 Management Plan 8-18 Estimated Costs 8-19 Table Estimated Costs for Home Heating Oil Tank Testing/Abandonment 8-19 Public Outreach and Education Domestic Wells and Monitoring Wells 8-21 Table Number of Wells per WHPA 8-23 Modes of Contamination 8-24 Existing Laws and Regulations 8-25 Page vi

8 Management Plan 8-30 Estimated Costs 8-31 Public Outreach and Education Septic Systems 8-34 Table Septic System Risk/Susceptibility Analysis 8-35 Modes of Contamination 8-36 Existing Laws and Regulations 8-37 Table Minimum Distances from a Septic System 8-38 Management Plan 8-39 Estimated Costs 8-41 Table Estimated Costs 841 Public Outreach and Education Existing Transportation Corridors 8-42 Modes of Contamination 8-44 Existing Laws and Regulations 8-45 Management Plan 8-45 Estimated Costs 8-48 Public Outreach and Education Home and Agriculture Pesticide/Fertilizer Application 8-48 Table Kentucky Fertilizer Consumption, Source Reduction Grant 8-52 Modes of Contamination 8-53 Existing Laws and Regulations 8-53 Management Plan 8-56 Estimated Costs 8-57 Public Outreach and Education 8-57 Page vii

9 8.12 Recreational Boating and Marinas 8-60 Modes of Contamination 8-63 Existing Laws and Regulations 8-63 Management Plan 8-65 Estimated Costs 8-66 Public Outreach and Education Underground Storage Tanks Other Potential Contaminants 8-70 Dry Cleaners 8-70 Restaurants 8-71 Paint/Hardware Stores 8-71 Medical Facilities 8-72 Swimming Pools 8-72 Beauty/Nail Salons 8-72 Jewelry Manufacturing 8-73 Grocery and Convenience Store 8-73 Custom Print 8-73 Debris 8-73 Agriculture 8-75 Nursery 8-75 Photography Studios and Development Groundwater Monitoring Plan 8-77 Page viii

10 8.16 Public Education and Outreach 8-78 Table LWC In-house Forms Used During Development of the Plan 8-79 Table Partial Listing of Web Sites Used to Develop or Locate Educational Materials 8-80 Table LWC s WHPP In-house Publications 8-80 Table Other Educational Materials 8-80 Table Target Audiences for Educational Materials 8-81 Table Materials Used for Other Purposes Review, Modification, and Update Procedures 8-87 ATTACHMENT 9 Contingency Planning 9.1 Introduction Existing Emergency Planning 9-1 Table Table Specific Emergencies/Disasters Discussed within The Metro EOP or the LWC ERP 9-2 Radio and Television Broadcast Stations to be Contacted in an Emergency Alternative Long-term and Short-term Water Suppliers Review and Update Identification of Future Problems 9-6 ATTACHEMENT 10 PUBLIC NOTICES ATTACHMENT 11 PUBLIC COMMENTS AND RECORDS Page ix