Env-Wq 1000 corrected

1 NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES i Env-Wq 1000 TABLE OF CONTENTS CHAPTER Env-Wq 1000 SUBDIVISIONS; INDIVIDUAL SEWAGE DISPOSAL SYSTEMS PART Env-Wq 1001 PURPOSE; APPLICABILITY; WAIVERS; STATUTORY DEFINITIONS Env-Wq Purpose Env-Wq Applicability Env-Wq Waivers Env-Wq Statutory Definitions PART Env-Wq 1002 DEFINITIONS Env-Wq Aeration Tank Env-Wq Applicant Env-Wq Applicant s Agent Env-Wq Approval to Operate Env-Wq Approved Plans and Specifications Env-Wq Bed Env-Wq Biomat Interface Env-Wq Bunkhouse Env-Wq Cesspool Env-Wq Chamber System Env-Wq Cluster Subdivision Env-Wq Commercial Env-Wq Composite Average Slope Env-Wq construction Approval Env-Wq Conventional pipe and Stone System Env-Wq Department Staff Env-Wq Design Intent Env-Wq Domicile Env-Wq Do Not Backfill Order Env-Wq Drainage Swale Env-Wq Dry

2 Well Env-Wq Effluent Env-Wq Effluent Conduit Env-Wq Effluent Disposal Area (EDA) Env-Wq Expansion Env-Wq Expansion of Use Env-Wq Fill Extension Env-Wq Gallons Per Day (GPD) Env-Wq Gravity Grease Interceptor Env-Wq Holding Tank Env-Wq Horizon Env-Wq Hydric Soil Env-Wq Hydrophytic Vegetation Env-Wq Impermeable Substratum Env-Wq Increase the Load on a Sewage Disposal System Env-Wq Individual Sewage Disposal System (ISDS) Env-Wq Inspection Env-Wq Install Env-Wq ISDS Owner Env-Wq Large-Diameter Graveless pipe (LDGP) System NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES ii Env-Wq 1000 Env-Wq Large System Env-Wq Ledge Lot Env-Wq Ledge Tank Env-Wq Marshes Env-Wq Open Space/Conservation Subdivision Env-Wq Organic Soil Material Env-Wq Percolation (perc) Rate Env-Wq Percolation (perc)

3 Test Env-Wq Permitted Designer Env-Wq Permitted Installer Env-Wq Poorly Drained Soils Env-Wq Property Owner Env-Wq Prominent Redoximorphic Features Env-Wq Public Sewer Env-Wq Receiving Layer Env-Wq Redoximorphic Features Env-Wq Repaired or Replaced Env-Wq Residence Env-Wq Residential Env-Wq Restrictive Layer Env-Wq Seasonal High Water Table Env-Wq Senior Housing Env-Wq Septic Tank Env-Wq Shoreland Frontage Env-Wq Slope Env-Wq Small System Env-Wq Soil Horizon Env-Wq Special Flood Hazard Area Env-Wq Standard Dimension Ratio (SDR) Env-Wq State-Approved Env-Wq Steady State Env-Wq Subdivision Approval Env-Wq Test Pit Env-Wq Treatment Tank Env-Wq Trench System Env-Wq Very Poorly Drained Soils Env-Wq Watercourse Env-Wq When Land is Exchanged Between Abutters PART Env-Wq 1003 APPLICATIONS FOR SUBDIVISION OR ISDS APPROVAL Env-Wq Submission of Applications Required Prior to Commencement of Work Env-Wq Agents; Preparation of Plans.

4 Seals Required Env-Wq Format of Plans Env-Wq Application Fee Env-Wq Required Signatures and Certifications Env-Wq Information Required for Subdivision Applications Env-Wq Plans Required for Subdivision Applications Env-Wq Additional Requirements for Subdivisions To Be Served By a Public Water System Env-Wq Subdivision Contracts Allowed Before Approval NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES iii Env-Wq 1000 Env-Wq Subdivision Approval Required Prior to Septic System Approval Env-Wq Lots or Condominiums Not Having Subdivision Approval Env-Wq Information Required for ISDS Applications Env-Wq Plans Required for ISDS Applications Env-Wq Ledge Lot Specifications Env-Wq Confirmation of Public Water System Connection Required Env-Wq Additional Requirements If Encroachment Waiver Requested PART Env-Wq 1004 APPROVALS; INSTALLATION; REPLACEMENT OF ISDS COMPONENTS; EXPANSIONS Env-Wq Subdivision and ISDS Application Processing Env-Wq Executed Easements Env-Wq Other State Approvals Env-Wq Processing of Encroachment Waiver Applications; Criteria Env-Wq Alteration of Subdivisions After Approval Env-Wq Posting of construction Approval Required Env-Wq ISDS Inspection Required Env-Wq Alteration of ISDS After construction Approval.

5 When New Plans Required Env-Wq Approval to Operate for ISDS Having Multiple Connections To A Single EDA Env-Wq Approval to Operate for ISDS Env-Wq Use of Installer s Permit Number Env-Wq Field Waivers Prohibited Env-Wq Expiration of construction Approvals; Retention of Plans Env-Wq Installation of Well in Undesignated Location Env-Wq Transfer of Subdivision Approvals Env-Wq Transfer of construction Approvals Env-Wq Suspension of Revocation of Approvals Env-Wq Repair or Replacement of Existing Residential ISDS Env-Wq Replacement of Other Existing ISDS Env-Wq Replacement of Systems in Failure; Pumping Required Env-Wq When Installation of Replacement ISDS Required Env-Wq Expansion, Relocation, or Replacement of Existing Structures Env-Wq Expansion of Existing Use.

6 Including Conversion to Full-Time Occupancy Env-Wq Full-Time Use or Occupancy PART Env-Wq 1005 SUBDIVISIONS Env-Wq Purpose Env-Wq Lot Size Env-Wq Minimum Lot Sizes Env-Wq Open Space/Conservation Subdivisions Env-Wq Lot Width Env-Wq Easements and Flowage Easements Env-Wq Test Pits and Percolation Tests for Subdivisions Env-Wq Conversions to Condominiums Env-Wq Manufactured Housing Parks Env-Wq Recreational Campgrounds Env-Wq Non-Building Lots NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES iv Env-Wq 1000 PART Env-Wq 1006 TEST PITS Env-Wq Location of Test Pits Env-Wq Depth of Test Pits Env-Wq Size of Test Pits Env-Wq Number of Test Pits Env-Wq Test Pit Soil Description Env-Wq Recordation, Submission, and Verification of Test Pit Data Env-Wq Refill of Test Pits Env-Wq Additional Test Pits Required PART Env-Wq 1007 PERCOLATION TEST Env-Wq Location of Percolation Test Env-Wq Depth of Percolation Test Env-Wq Distance from Test Pits Env-Wq Size of Test Hole Env-Wq Percolation Test Procedures Env-Wq Percolation Tests in Sandy Soils Env-Wq Size of Bed PART Env-Wq 1008 DESIGN REQUIREMENTS FOR ALL SYSTEMS Env-Wq Lot Loading Env-Wq System Capacity; Number of EDAs.

7 Minimum Design Flow Env-Wq Daily Flow Volume Env-Wq Minimum Distances Env-Wq Nitrate Setbacks to Property Lines Env-Wq Protective Well Radii - Distance Env-Wq Protective Well Radii - Uses Env-Wq Recognized Extent of Protective Well Radii Env-Wq Overlapping Protective Well Radii Env-Wq Non-Conforming Protective Well Radii Env-Wq Recordation of Descriptive Location of Well Env-Wq Standard Release Form for Protective Well Radii Env-Wq Easements and Flowage Easements PART Env-Wq 1009 SEWER LINES Env-Wq Sewer Line Composition Env-Wq Crossing Water Lines Env-Wq Manholes and Clean-outs in Long Runs Env-Wq pipe Under Wheel Loads Env-Wq Calculating Infiltration Env-Wq Slope of pipe Env-Wq Plumbing Code PART Env-Wq 1010 SEPTIC TANKS Env-Wq Liquid Capacity of Septic Tanks: Residential Up To Ten Bedrooms Env-Wq Septic Tank Capacity for Commercial and Large Residential Structures Env-Wq Water-Tightness of Septic Tanks Env-Wq Backfill and Bedding For Septic Tanks Env-Wq Access to Interior of Septic Tank Env-Wq Septic Tank Design Requirements Env-Wq Inlet and Outlet Baffles Env-Wq pipe to Tank Connections NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES v Env-Wq 1000 Env-Wq Storage Above Liquid Level.

8 Septic Tank Dimensions Env-Wq Liquid Depth Env-Wq Compartments Env-Wq Multiple Tanks Env-Wq Ledge Tanks Env-Wq Replacement of Septic Tanks PART Env-Wq 1011 AERATION TANKS Env-Wq Use of Aeration Tanks Env-Wq Service Contract PART Env-Wq 1012 GRAVITY GREASE INTERCEPTORS AND FLOOR DRAINS Env-Wq Gravity Grease Interceptors Required Env-Wq Gravity Grease Interceptor Design Requirements Env-Wq Access to Interior of Gravity Grease Interceptor Env-Wq Backfill and Bedding For Gravity Grease Interceptors Env-Wq Floor Drains PART Env-Wq 1013 SEWAGE PUMPS AND SIPHONS Env-Wq Pump Alarms Env-Wq Pump Chamber Env-Wq Siphons Env-Wq Wiring for Pumps and Alarms PART Env-Wq 1014 EFFLUENT DISPOSAL AREAS: SOILS, SET-BACKS Env-Wq Definitions Env-Wq Poorly Drained Soils Env-Wq Very Poorly Drained Soils Env-Wq Receiving Layer Env-Wq Basis for Poorly and Very Poorly Drained Soils Env-Wq Delineation of Wetlands.

9 Hydric Soils Determinations Env-Wq Distance Above Impermeable Substratum Env-Wq Distance Above Seasonal High Water Table Env-Wq Separation Distances on Sloping Sites Env-Wq Spot Elevations Required for Systems on Slopes Env-Wq Water Table Less Than 15 Inches PART Env-Wq 1015 DISTRIBUTION BOXES Env-Wq Distribution Boxes Env-Wq Velocity Reducing Devices Env-Wq Multiple Beds PART Env-Wq 1016 construction REQUIREMENTS FOR ALL EDA Env-Wq Bed Size for Conventional Stone and pipe Systems Env-Wq Bed Size for Chamber Systems Env-Wq Excavation Env-Wq Type of Stone for Conventional Stone-and- pipe Beds or Trenches Env-Wq Backfill of Conventional pipe -and-Stone Beds Env-Wq Type of Sand for Chamber and LDGP Systems Env-Wq Backfill of Chamber and LDGP Beds Env-Wq Storm Runoff Env-Wq Vehicular Traffic NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES vi Env-Wq 1000 PART Env-Wq 1017 EFFLUENT CONDUITS Env-Wq Installation Requirements Env-Wq Concrete Chambers Env-Wq Venting for Chamber Systems Env-Wq Location Under Driveways Env-Wq Requirements for All Effluent Conduits Env-Wq Effluent Conduits for Conventional Pip-and-Stone Systems PART Env-Wq 1018 BEDS AND TRENCHES Env-Wq construction of Beds Env-Wq Trench Orientation Env-Wq Width and Spacing of Trenches Env-Wq construction of Tranches Near Trees Env-Wq Size of Effluent Disposal

10 Area for Trench Systems PART Env-Wq 1019 PRESSURE DISTRIBUTION Env-Wq Pressurized Distribution System Env-Wq Design Requirements Env-Wq Mounding Minimization Env-Wq Application Requirements Env-Wq construction Requirements PART Env-Wq 1020 DRY WELLS Env-Wq Masonry Units Env-Wq Stone Env-Wq Distance Between Dry Wells Env-Wq Sizing of Effluent Disposal Area Env-Wq Abandoned Dry Wells Env-Wq Precast Units PART Env-Wq 1021 RAISED EFFLUENT DISPOSAL AREAS Env-Wq Building Foundation Env-Wq Site Preparation Env-Wq Fill Material Env-Wq Fill Extension; Side Slopes Env-Wq Slope of Site for Raised EDA Env-Wq Retaining Walls Prohibited PART Env-Wq 1022 ALTERNATE SYSTEMS Env-Wq