MS4 Phase II Tiered Permit Discussion

Transcription

1 MS4 Phase II Tiered Permit Discussion M S 4 P H A S E I I P E R M I T D E V ELOPME NT A C WA S TO R MWAT ER S U M MI T L ANE C O MMUNITY C O LLEGE, O R EGON M AY 1 0,

2 MS4 Phase II Permit Comprehensive General Permit Approach DEQ is currently redrafting the permit Propose tiered outline Informational meeting to discuss tiered outline Continue permit development Tentative public comment Sept. 30, 2017

3 Minimum Control Measures Education and Outreach Public Involvement and Participation Illicit Discharge Detection and Elimination Construction Site Runoff Post-Construction Site Runoff Pollution Prevention and Good Housekeeping for Municipal Operations

4 Compliance Timeline Education & Outreach Public Involvement IDDE Construction Site Runoff Post-Const. Site Runoff Pollution Prevention Existing 1 year 1 year 3 years 4 years 4 years 3 years New 1 year 1 year 4.5 years 4.5 years 4.5 years 4.5 years A New MS4 Permittee is any community required to have MS4 permit coverage for the first time. In accordance federal rules, New MS4 Permittee are allotted up to five years to fully comply with the conditions of the permit and to implement necessary BMPs

5 Tier I and Tier II Communities Tier I Tier II <10,000 population* 10,000 population* Existing New Existing New Benton County Medford Josephine Co. Philomath Eagle Point Lane County RVSS Linn County Turner Millersburg Marion County RVSS-Central Point Albany Wood Village Rogue River Polk County RVSS-Jackson Co. Grants Pass Ashland Bend Corvallis Keizer RVSS-Phoenix RVSS-Talent Springfield Troutdale *Based on 2010 US Census data.

6 Minimum Control Measures Education & Outreach Education and Outreach Implementation Date: 1 year Conduct an Education and Outreach Program Track Assessment

7 Minimum Control Measures Public Involvement & Participation Public Involvement and Participation Implementation Date: 1 year SWMP Website Stewardship Opportunities Assessment

8 Minimum Control Measures Pollution Prevention Pollution Prevention and Good Housekeeping for Municipal Operations Implementation Date: 3 year O&M Strategy for Existing Controls new: 4.5 year Pollution Prevention in Facilities &Operations Requirements for Pesticide and Fertilizer Application Permittee-owned NPDES 1200-Z Permit Facilities Litter Control and Materials Disposal Assessment

9 Minimum Control Measures Illicit Discharge Detection & Elimination Illicit Discharge Detection and Elimination Implementation Date: 3 year new: 4.5 year Legal Authority Storm Sewer System Map Enforcement Procedures Program to Detect and Eliminate Illicit Discharges Screening Program Training and Education Assessment

10 Tiered Implementation of the IDDE Program Storm Sewer System Map Screening Program GIS based MS4 map GIS or digital or printed MS4 map Dry weather screening System Investigation Tier I Tier II Examples: Visual dry weather screening for at least 25% of the MS4 and on average 10% each year thereafter. System investigation for at least 20% and on average 5% each year thereafter. Closed circuit TV equipment, dye, and/or smoke testing.

11 Minimum Control Measures Construction Runoff Construction Site Runoff Implementation Date: 4 year new: 4.5 year Legal Authority Construction Site Runoff Control Construction Site Plan Review Construction Site Inspections Enforcement Procedures Training and Education Assessment

12 Tiered Implementation of 5,000 ft 2 Threshold Construction Site Plan Review Construction Site Inspections Provide template Review template Review stormwater controls Require and confirm 1200-C Sediment discharge or complaint Inspect % of sites <1 acre Inspect % of sites 1 acre Tier I 5,000 ft 2 5,000 ft 2 - ¼ acre Tier II ¼ - <1 acre 1 acre *Inspect a percentage of the construction site per the MS4 permit year.

13 Minimum Control Measures Post-Construction Runoff Post-Construction Site Runoff Control Implementation Date: 4 year new: 4.5 year Legal Authority LID Code-Related Requirements Post-Const. Stormwater Management Requirements Post-Construction Site Runoff Plan Review Permanent Stormwater Controls Insp. & Enforcement Training and Education Assessment

14 Minimum Control Measures Post-Construction Runoff Post-Const. Stormwater Management Requirements: Step 1: Require prioritization of an LID approach. Step 2: Establish site performance standards and treatment requirements. Step 3: Allow for and establish mitigation options.

15 Post-Construction Site Runoff Program Tier I 5,000 5,000 ft 2 - ft 2 ¼ acre Tier II ¼ acre 1 acre Post-Construction site runoff plan review Inspect % of permanent stormwater controls <¼ acre Inspect % of permanent stormwater controls ¼ acre Long-term operation and maintenance O&M of SW controls owned/operated by another entity

16 Contact Information Christine Svetkovich DEQ Stormwater and UIC Section Manager Mark Riedel-Bash DEQ Stormwater Program Coordinator