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State of Delaware Regulations Governing Public Drinking Water Systems



Table of Contents

Below is the table of contents for the State of Delaware Regulations Governing Public Drinking Water Systems. The table of contents is provided here to aid those searching for specific information navigate the sections of the regulations. The full regulations are available through the link at the bottom of the page.


  • SECTION 1.0 GENERAL PROVISIONS

    • 1.1 Application
    • 1.2 Variance
    • 1.3 Exemption
    • 1.4 Reserved
    • 1.5 Reserved
    • 1.6 Right of Entry
    • 1.7 Prohibiting Water Useage
    • 1.8 Separability
    • 1.9 Enforcement of Regulations
    • 1.10 Emergency Orders
    • 1.11 Plans and Specifications
    • 1.12 Approval of Water Supplies
    • 1.13 Siting Requirements
    • 1.14 Approved Laboratory
    • 1.15 Quality
    • 1.16 Required Sampling, Monitoring or Analysis
    • 1.17 Use of Bottled Water
    • 1.18 Regulatory Classification
    • 1.19 Disinfection
    • 1.20 Compliance Dates
  • SECTION 2.0 DEFINITIONS

  • SECTION 3.0 SOURCE AND PROTECTION

    • 3.1 Water Source Desirability
    • 3.2 Sanitary Surveys
    • 3.3 Protection of Water
    • 3.4 Monitoring Water Quality
    • 3.5 Responsibility
    • 3.6 Certified Operator
    • 3.7 Approved Sampler/Tester
  • SECTION 4.0 REPORTING AND PUBLIC NOTIFICATION

    • 4.1 Reporting
    • 4.2 Public Notification

  • SECTION 5.0 RECORD MAINTENANCE

    • 5.1 Retaining Records
    • 5.2 Records Kept by Division
  • SECTION 6.0 CONSUMER CONFIDENCE REPORTS

    • 6.1 Purpose and Applicability
    • 6.2 Effective Dates
    • 6.3 Content of the Reports
    • 6.4 Required Additional Health Information
    • 6.5 Report Delivery and Recordkeeping
    • 6.6 Consumer Confidence Report Requirements for Regulated Contaminants
  • SECTION 7.0 MICROBIOLOGICAL REQUIREMENTS

    • 7.1 Sampling
    • 7.2 Microbiological MCLs
    • 7.3 Analytical Requirements
    • 7.4 Revised Total Coliform Rule
  • SECTION 8.0 GROUND WATER RULE

    • 8.1 General Requirements and Applicability
    • 8.2 Sanitary surveys for ground water systems
    • 8.3 Ground Water Source Microbial Monitoring and Analytical Methods
    • 8.4 Treatment Technique Requirements for Ground Water Systems
    • 8.5 Treatment Technique Violations for Ground Water Systems
    • 8.6 Reporting and Recordkeeping for Ground Water Systems
  • SECTION 9.0 INORGANIC AND ORGANIC CHEMICAL REQUIREMENTS

    • 9.1 Inorganic Chemical Requirements
    • 9.2 Organic Chemical Requirements
    • 9.3 Best Available Technologies
  • SECTION 10.0 LEAD AND COPPER RULE

    • 10.1 General Requirements
    • 10.2 Applicability of Corrosion Control Treatment Steps for Small, Medium-size and Large Water Systems
    • 10.3 Description of Corrosion Control Treatment Requirements
    • 10.4 Source Water Treatment Requirements
    • 10.5 Lead Service Line Replacement Requirements
    • 10.6 Public Education and Supplemental Monitoring Requirements
    • 10.7 Monitoring Requirements for Lead and Copper in Tap Water
    • 10.8 Monitoring Requirements for Water Quality Parameters
    • 10.9 Monitoring Requirements for Lead and Copper in Source Water
    • 10.10 Reporting Requirements
    • 10.11 Recordkeeping Requirements
    • 10.12 Analytical Methodology
  • SECTION 11.0 CORROSIVITY

    • 11.1 Corrosivity Sampling, Reporting and Analytical Methodology
  • SECTION 12.0 STAGE 1 DISINFECTANTS/DISINFECTION BYPRODUCTS RULE

    • 12.1 General Requirements
    • 12.2 Compliance Dates
    • 12.3 Qualified Personnel
    • 12.4 Control of Disinfectant Residuals
    • 12.5 Analytical Methodology
    • 12.6 Monitoring Requirements – General Requirements
    • 12.7 Monitoring Requirements for Disinfection Byproducts
    • 12.8 Monitoring Requirements for Disinfectant Residuals
    • 12.9 Monitoring requirements for disinfection byproduct precursors (DBPP)
    • 12.10 Bromide
    • 12.11 Monitoring Plans
    • 12.12 Compliance Requirements
    • 12.13 Disinfection Byproducts
    • 12.14 Disinfectant Residuals
    • 12.15 Reporting and Recordkeeping Requirements
    • 12.16 Treatment Technique for control of Disinfection Byproduct (DBP) Precursors
  • SECTION 13.0 INITIAL DISTRIBUTION SYSTEM EVALUATIONS

    • 13.1 General Requirements
    • 13.2 Standard Monitoring
    • 13.3 System Specific Studies
    • 13.4 40/30 Certification
    • 13.5 Very Small System Waivers
    • 13.6 Compliance Monitoring Location Recommendations
  • SECTION 14.0 STAGE 2 DISINFECTANTS/DISINFECTION BYPRODUCTS RULE

    • 14.1 General Requirements
    • 14.2 Routine Monitoring
    • 14.3 Monitoring Plan
    • 14.4 Reduced Monitoring
    • 14.5 Additional Requirements for Consecutive Systems
    • 14.6 Conditions Requiring Increased Monitoring
    • 14.7 Operational Evaluation Levels
    • 14.8 Requirements for Remaining on Reduced TTHM and HAA5 Monitoring
    • 14.9 Requirements for Remaining on Increased TTHM and HAA5 Monitoring
    • 14.10 Reporting and Recordkeeping Requirements
  • SECTION 15.0 RADIOACTIVITY

    • 15.1 Limits
    • 15.2 Monitoring Frequency and Compliance Requirements for Radionuclides in Community Water Systems
  • SECTION 16.0 SURFACE WATER TREATMENT RULE

    • 16.1 Untreated Water
    • 16.2 General Requirements
    • 16.3 Disinfection
    • 16.4 Filtration
    • 16.5 Monitoring Requirements
    • 16.6 Analytical Methodology
  • SECTION 17.0 INTERIM ENHANCED SURFACE WATER TREATMENT RULE

    • 17.1 General Requirements: Interim Enhanced Surface Water Treatment Rule
    • 17.2 A Public Water System Subject to the Requirements of this Section
    • 17.3 Uncovered Finished Water Reservoirs Prohibition
    • 17.4 Surface Water or Ground Water Under the Direct Influence of Surface Water with Population Change to >10,000 People
    • 17.5 Disinfection Profiling and Benchmarking
    • 17.6 Filtration Interim Enhanced Surface Water Treatment Rule
    • 17.7 Filtration Sampling Requirements
    • 17.8 Reporting and Recordkeeping Requirements
  • SECTION 18.0 RECYCLE RULE

    • 18.1 Applicability
    • 18.2 Reporting
    • 18.3 Treatment Technique Requirement
    • 18.4 Recordkeeping
  • SECTION 19.0 ENHANCED FILTRATION AND DISINFECTION – SYSTEMS SERVING FEWER THAN 10.000 PEOPLE

    • 19.1 Additional requirements for systems serving fewer than 10,000 people
  • SECTION 20.0 ENHANCED TREATMENT FOR CRYPTOSPORIDIUM

    • 20.1 General Requirements for LT2ESWTR
    • 20.2 Source Water Monitoring
    • 20.3 Sampling Schedules
    • 20.4 Sampling Locations
    • 20.5 Analytical Methods
    • 20.6 Approved Laboratories
    • 20.7 Reporting Source Water Monitoring Results
    • 20.8 Grandfathering Previously Collected Data
    • 20.9 Requirements for Making a Significant Change in Disinfection Practice
    • 20.10 Developing the Disinfection Profile and Benchmark
    • 20.11 Bin Classification for Filtered Systems
    • 20.12 Filtered System Additional Cryptosporidium Treatment Requirements
    • 20.13 Unfiltered system Cryptosporidium Treatment Requirements
    • 20.14 Schedule for Compliance with Cryptosporidium Treatment Requirements
    • 20.15 Requirements for Uncovered Finished Water Storage Facilities
    • 20.16 Microbial Toolbox Options for Meeting Cryptosporidium Treatment Requirements
    • 20.17 Source Toolbox Components
    • 20.18 Pre-filtration Treatment Toolbox Components
    • 20.19 Treatment Performance Toolbox Components
    • 20.20 Additional Filtration Toolbox Components
    • 20.21 Inactivation Toolbox Components
    • 20.22 Reporting Requirements
    • 20.23 Recordkeeping Requirements
    • 20.24 Requirements to Respond to Significant Deficiencies Identified in Sanitary Surveys Performed by EPA

Check the following link to see the full regulations:



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