2015 multi-sector general permit for stormwater discharge
TRANSCRIPT
Current Issues in Storm Water
2015 MSGP
Objectives/Takeways
■ Industrial Stormwater– NOI Due September 2, 2015– Endangered species need advanced look
■ Stormwater requirements■ Potential pollutant sources■ New England framework
– What are other states doing?
Acronyms
■ BMP – Best Management Practice
■ ICP – Integrated Contingency Plan
■ LID – Low Impact Development
■ MSGP – Multi-Sector General Permit
■ NOI – Notice of Intent
■ NOT – Notice of Termination
■ NPDES – National Pollutant Discharge Elimination System
■ NEC – No Exposure Certification
■ SWMP – Storm Water Management Plan
■ SWPPP (SWP3) – Storm Water Pollution Prevention Plan
■ TMDL – Total Daily Maximum Load
■ WLA – Waste Load Allocation
General
■ What is stormwater?– Storm water is rainfall runoff, snow melt runoff, and surface
runoff and drainage
Why Do We Care About Stormwater?
■ Contaminated stormwater is a significant source of surface water pollution
■ Pollution on the land can end up in stormwater runoff and into our water bodies
Regulatory Background
■ Water Quality Act of 1965 – Federal Water Pollution Control Act Amendments of 1972– Clean Water Act of 1977
■ Water Quality Act of 1987 – Phase 1 (1990)
» Medium and Large MS4s » Industrial Stormwater Dischargers» Construction Sites of 5+ acres
– Phase II (1999)» Small MS4s» Construction Sites of 1+ acres
Regulatory Background
■ Industrial Stormwater Dischargers
– 1995 Multi-Sector General Permit– 2000 Multi-Sector General Permit
» Renewed– 2008 Multi-Sector General Permit
» Renewed three years after expiration– 2013 Multi-Sector General Permit
» Renewed on June 4, 2015
Storm Water Discharges – What do these states have in common?
Delegated States
■ Most states are delegated to oversee program– 46 are delegated
– States issue permits
■ Four states are not delegated– Massachusetts
– New Hampshire
– Idaho
– New Mexico
– EPA issues permits
New England States
New England States
StateGeneral Permit - Effective
DateGeneral Permit - Expiration
DateComment
Massachusetts June 4, 2015 June 3, 2020 Federal Permit
New Hampshire June 4, 2015 June 3, 2020 Federal Permit
Maine April 26, 2011 April 25, 2016 State Permit
Connecticut October 1, 2011 September 30, 2016 State Permit
Rhode Island August 15, 2013 August 14, 2018 State Permit
Vermont August 4, 2011 August 4, 2016 State Permit
NPDES - Industrial
■ Permitting Options? – Multi-Sector General Permit (MSGP)
– Federal or state
– Meant to be easy
– No Exposure Certification (NEC)
– Still need to file!
– Individual Wastewater Discharge Permit
– Don’t need these for stormwater
Sectors & SIC
■ What is an SIC code? – A Standard Industrial Classification code or SIC code is a four-
digit code describing the activities taking place at a facility. Facilities conducting multiple operations may have multiple SIC codes, one describing each activity.
■ What is a Primary SIC code? – A primary SIC code describes the activity that generates the
highest net revenue at a facility.
Multi-Sector General Permit (MSGP) Applicability
■ Sectors organized by SIC Codes
– Sector A: Timber Products
– Sector E: Glass, Clay, Cement, Concrete and Gypsum Products
– Sector M: Automobile Salvage Yards
– Sector L: Landfills (Active & Closed)
– Sector N: Scrap and Waste Recycling
– Sector P: Land Transportation and Warehousing
– Sector S: Airports
– Sector T: Wastewater Treatment Plants (>1 MGD)
Sectors & SIC
Sectors & Sampling
Stormwater
■ 2015 MSGP– Improve permit clarity
– Address errors
– Streamline the permit
– Added NAICS code cross-reference
■ 2015 MSGP– Added specificity for effluent limits
– Superfund Site Protection
– Improved public accessibility
» Post plan
» Provide plan elements in NOI
Stormwater
■ 2015 MSGP– Electronic filing
– Pavement wash water
– Reduced inspections
– Specific deadlines
– Saltwater benchmark
– Airport deicing effluent limits
Stormwater
General
■ Are There Exemptions? – Industrial
» Physically impossible for storm water to discharge from the site
» Recycling of storm water with no resulting discharges
» Pumping and hauling of storm water to an authorized disposal facility
» Discharging of storm water to a publicly owned treatment works (POTW)
» Injecting storm water underground
» Containing of all storm water within property boundaries
General
■ No Exposure Certification (NEC)
– Activities are designed to prevent exposure to rain, snow, snowmelt and/or runoff
– Material handling equipment or activities
– Material handling activities
» Storage, loading and unloading, transportation, or conveyance
– raw material, intermediate product, final product or waste product
» Final products intended for outdoor use are not required to be stored indoors or in a storm-resistant shelter.
10 No Exposure Certification Questions
Multi-Sector General Permit (MSGP) Implementation
■ SWPPP Contents
■ Discharges to Water Quality Impaired Waters
■ Quarterly Visual Inspections
■ Annual Comprehensive Inspections
■ Benchmark/Numeric Effluent Monitoring
■ Electronic Reporting To EPA
– Sample Results (<30 days)
– Inspection Reports (<45 days)
■ Employee Annual Training
2000 - 2008 MSGP Comparison
2000 - 2008 MSGP Comparison
Data Review
■ Shift to No Exposure
■ Less Sites Covered – 21%
■ Site closures?
■ Re-evaluation of regulated discharges?
Data Review
WHAT WILL 2015 REVEAL????
Sector-Specific Analytical - Metals
■ Metals– Cadmium, Copper, Lead, Nickel, Silver, Zinc
– Provide ‘additional protection for endangered species’
– Hardness Dependent
– Determine hardness of receiving water
– Scaled
– 25 mg/L increments
■ Three Options– Individual grab
– Group grab sampling
– 3rd Party Data
Sector-Specific Analytical - Metals
Sampling & Monitoring
■ What is a Representative Rain Event? – 0.1” of measured precipitation– Occurs at least 72 hours from the last 0.1 inch or
more of measurable precipitation– Sufficient enough discharge from the outfall to obtain
a sample
Endangered Species Review2008 v. 2015
■ Endangered Species Criterion■ Must make eligibility determination
– Five (5) criterion for review– Criterion A: No substantial changes– Criterion B: Certified by other operator; formerly criterion
F– Criterion C: Discharges not likely to adversely affect listed
species; formerly criterion E– Criterion D: Formerly criterion B– Criterion E: Activities authorized under ESA section 10
permit; formerly criterion C
*** Likely criteria
Endangered Species Review Process2015
■ Review Process– Fish & Wildlife On-line species & habitat review
» Electronic determination received– NMFS aquatic species & watershed review
» Published map– If species identified:
» Complete & submit Criterion C determination
– If no species identified:» Proceed with NOI (Select Criteria E)» No additional action required for Criteria E
Objectives/Takeways
■ Industrial Stormwater– NOI Due September 2, 2015– Endangered species need advanced look
■ Stormwater requirements■ Potential pollutant sources■ New England framework
– What are other states doing?
