NEWEA 2014 Spring Conference

Industrial Stormwater Discharge – It’s a Piece of the Stormwater Puzzle!

Tuesday, June 3, 2014

David P. Horowitz, P.E., CSP, Project Manager

Slideshare: dphorowitzTwitter: @dphorowitzYoutube: dphorowitz

Objectives/Takeways

■ Industrial Stormwater Introduction

■ Stormwater requirements■ Potential pollutant sources■ New England framework

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

■ SPCC – Spill Prevention Controls & Countermeasures

■ 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

■ Point Source Pollution– Water Quality Act of 1965 – Federal Water Pollution Control Act Amendments of 1972– Clean Water Act of 1977

■ Non-Point Source Pollution– 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 Draft Multi-Sector General Permit

» Awaiting renewal

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

StateGeneral Permit - Effective

DateGeneral Permit - Expiration

DateComment

Massachusetts September 29, 2008 September 29, 2013 Federal Permit

New Hampshire September 29, 2008 September 30, 2013 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

NPDES - Industrial

■ Breaking News ….– EPA’s MSGP expired on September 29, 2013– The more things change ….

New MSGP Released

Stormwater

■ 2013 MSGP (Proposed)– Improve permit clarity

– Address errors

– Streamline the permit

– Added NAICS code cross-reference

■ 2013 MSGP (Proposed)– Added specificity for effluent limits

– Superfund Site Protection

– Improved public accessibility

» Post plan

» Provide plan elements in NOI

Stormwater

■ 2013 MSGP (Proposed)– 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.

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?

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

Objectives/Takeways

■ Industrial Stormwater Introduction

■ Stormwater requirements■ Potential pollutant sources■ New England framework

THANK YOU!!!!!