NDDOT Matt Sperry Environmental Scientist

Matt Sperry
Environmental Scientist
       NDDOT

Overview of Training
 Presentation on General Stormwater items
    Recap of project visits – Summer of 2012
    Stormwater Pollution Prevention Plans
    New methods developed to move us forward
 Question and Answer Session
    Your time to have your questions answered
 Presentation on Municipal Separate Storm Sewer
 Systems – Melanie Parvey, City of Grand Forks, ND
 and Colleen Peterson, City of Bismarck, ND

2012 Project Visits

 State of the State
    How are we doing right now?
    What are the main areas we can improve upon?
    What are the main issues across the state?

2012 Project Visits
 All 8 Districts were visited at least once.
 Projects were reviewed with District Staff
 Used to prepare for inspections by regulators
 Reviewed:
    Project Site
    SWPPP
    Inspection Logs
    Maintenance Records

What are we doing right?
 Understanding concepts
   Good understanding that Erosion and Sediment Control
    is a major issue
   Working with Contractors towards a common goal
   Recognize that we need to change

What areas can we make
improvements?
 Best Management Practices
    Use
    Installation
    Location
 PAPERWORK!!!
    Its importance cannot be stressed enough!

BMP Issues that
need to be
addressed
Unprotected and
sediment allowed to
enter the drainage

Complete
installation
Inlet protected on all
sides and staked
appropriately

Violations that we
are not aware are
violations
BMPs that are
installed must be in
working condition
no matter their
surroundings

BMPs that we are
not listing as BMPs
Earthen berms are a
wonderful BMP
when constructed
and used correctly,
but must be
documented

Improper
installation
BMPs will not work
as required if they
are not installed
correctly

Improper
installation
Not only how you
install a BMP, but
when and where can
be a factor in it’s
effectiveness

Ensuring
Subcontractors are
following
requirements
Specifications,
Standard Drawings
and the Handbook
have requirements
that need to be
followed

Ensuring other
project actions do
not compromise
the BMPs
The plan is only good
if it is followed. If
things change on
site, the plan should
be modified

Erosion Control
should be installed
as soon as possible

The shorter the
amount of time an
area is left exposed,
the less potential
there is for erosion

Even if it is
temporary, it
should be protected

Even things like
temporary bypasses
need to have controls
installed to ensure
that no erosion takes
place

But that’s what the
plans said…
Plans are just that.
They should be
changed if site
conditions require it.

What is the most common issue?
 Paperwork
    SWPPP
       Not available
       Not complete
       NDDoH Template Trap
   Inspections
   Maintenance
   Records/Plan Revisions

Stormwater Pollution Prevention
Plan

Stormwater Pollution Prevention
Plan
 Who does what?
   Contractor
   Project Engineer
 What is supposed to be
 in it?

SWPPP Creation
 The contractor is           The Project Engineer
  required to develop the      should review the
  SWPPP for the project.       SWPPP at that time to
 The SWPPP should be          check that it meets the
  submitted to the Project     permit requirements
  Engineer at the             Copies of the plans DO
  Preconstruction              NOT meet the
  Conference                   requirements of the
                               permit

SWPPP Implementation
 The contractor is
  responsible for
  implementing the
  actions they established
  in the SWPPP
 The Project Engineer is
  responsible for making
  sure that the Contractor
  is following his SWPPP

Determining Appropriate BMPs
 It is the responsibility of    It is the responsibility of
  the Designer to                 both the Contractor and
  determine appropriate           the Project Engineer to
  initial and final BMPs          determine if the BMPs
 The Contractor is               that have been
  responsible for                 developed will be
  determining appropriate         appropriate at the time
  BMPs to be used during          of installation and
  construction                    during their use.

Determining BMP Placement
 Same as Determining
  Appropriate BMPs
 The Designer will place
  the initial and final
  where they believe they
  should be placed, but it
  is up to the Contractor
  and the Project Engineer
  to determine if they are
  needed in those
  locations.

Who Can Change the SWPPP
 The Contractor should
  be updating the SWPPP
  as things change on‐site
 SWPPP is a living
  document
 If the Project Engineer
  feels changes should be
  made, they can direct the
  Contractor to make
  those changes

Who Does Inspections
 The Contractor is required
  to conduct the inspections
  and maintain the records
 The Project Engineer
  should periodically review
  the inspection logs to
  ensure that they are being
  conducted at the
  appropriate intervals and
  include all required
  information

SWPPP Implementation
 What should a Storm
  Water Pollution
  Prevention Plan contain?
 How to effectively use a
  SWPPP
 When a SWPPP should
  be updated
 What needs to be done
  with a SWPPP at the end
  of the project

SWPPP Contents
 NDDoH permit lists seven
 main sections of a
 SWPPPP
   Site Description
   Operational Controls
   Erosion and Sediment
      Controls
     Stormwater Management
     Maintenance
     Inspections
     Plan Review and Revisions

Construction Sequencing
 A specified work schedule      Spec 110.06 covers this to a
  that coordinates the timing     point by limiting the
  of land‐disturbing              amount of disturbed
  activities and the              ground depending on the
  installation of erosion and     project.
  sediment control               Stabilize as you go!!!
  measures.
 Disturbing only part of a
  site at a time to prevent
  erosion from dormant
  parts

Site Description
 An overall description of
    the project
   Land disturbance estimate
    and total area of the
    project
   Timetable of disturbance
    activities
   Soil description
   Listing of surface waters or
    storm sewers
   Site Map

Site Map
 Drainage patterns for
    existing and final grades
   Site and disturbance
    boundaries
   Locations of BMPs
   Locations of areas to be
    stabilized
   Surface waters including
    wetlands
   Discharge points
   Site maps for off site areas
    such as borrow sites

Operational Controls
 List person
  knowledgeable in BMPs
  that will oversee the
  implementation of the
  SWPPP
 Good housekeeping
  practices
 Preventative
  maintenance practices
 Spill prevention and
  response

Operational Controls
 Proof of training on
  SWPPP compliance
 Discusses ultimate fate
  of concrete wash water
 Discusses dewatering
  operations
   Permit contains specific
    requirements for
    dewatering activities

Erosion and Sediment Controls
 Must identify appropriate
  control measures and
  when they will be
  implemented
   Controls must be provided
    for all downslope
    boundaries and side slope
    boundaries
   Measures for areas where
    work has ceased
   List the installation and
    maintenance procedures
    for all BMPs

Erosion and Sediment Controls
 Explain what is to be
  done if sediment
  migrates off‐site
 Provide for protection
  from a 2 year, 24 hour
  storm event.
 Show whether or not the
  project discharges to an
  impaired stream and if
  so what provisions have
  been made

Stormwater Management
 Identify permanent
 practices incorporated
 into the project
   Stormwater ponds
   Vegetated swales
   Infiltration sites
   Velocity/energy
    dissipation devices
    placed at discharges
   Outfall erosion
    protection

Maintenance
 Plan must indicate the
  maintenance and/or
  clean out intervals for
  each selected BMP
 If inspections show that
  BMPs are not operating
  effectively, maintenance
  shall be arranged and
  conducted as soon as
  possible

Inspections
 Must provide for site
  inspections
 Must be done by
  qualified personnel
 Items to be inspected:
   All BMPs
   Outlets
   Areas that have
    temporarily or
    permanently ceased
    work

Inspections and Maintenance
 Three types of              The effectiveness of BMP
 inspections                  self‐inspection and
   Routine*                  maintenance programs
   Before Rain Events        vary according the
   After Rain Events*
                              amount of resources
                              allocated to the tasks.
                              When made a priority,
 * Required by the permit    inspections and
 but generally done by        maintenance ensure that
 contractors                  BMPs function properly
                              and help prevent
                              pollution discharges.

Inspections
 Shall be performed once       Inspections must include:
  every 14 days AND within         Date and time
  24 hours after any storm         Name of inspector
  event greater that ½ inch        Inspection findings
  per 24 hour period                including
   This may change                 recommendations
 Should have rain gauge on        Date, time and party
  site                              completing any corrective
 WRITE THEM DOWN                   actions
                                   Date and amount of all
 Inspection records must be        >1/2 rains
  retained and kept onsite
                                   Documentation showing
                                    SWPPP updates due to
                                    inspections

Inspections
 Completed areas that have
  not achieved 70% coverage
  can be inspected once per
  month
 Can be stopped for areas
  meeting final stabilization
 May be suspended due to
  frozen ground
 Sensitive areas may require
  more frequent inspections

Plan review and revisions
 Plan should be signed and
  kept ON‐SITE for the
  duration
 Must make plan available
  upon request
 SWPPP shall be amended
  when there is a change in:
    Design
    Construction
    Operation
    Maintenance

Plan review and revisions
 Should also be amended
  if the plan is found to be
  ineffective in controlling
  pollutants
 Plan MUST match the
  site
 If there is anything in
  the plan that is not
  reflected on‐site (or vice
  versa) that is a potential
  violation

EXAMPLES
 http://www.ksdot.org/burconsmain/connections/Eros
  ionControlPlan.pdf Large Site Example
 http://www.ksdot.org/burconsmain/connections/SW
  P3JEWELL.pdf Smaller Site Example
   Kansas DOT
       Great examples of detailed project phasing
 http://www.dot.ca.gov/hq/construc/stormwater/docu
 ments/SWPPP_Prep_ManualJune2011.pdf
   California DOT (CALTRANS)
       Very detailed, step by step instructions

What comes next?
 Special Provision for
  Temporary Erosion and
  Sediment Control
 Plan Changes
 Specification Changes
 More Visits

Special Provision
 Explains Temporary and       Plan Changes
  Permanent BMPs                  Specifically call out
 Allows for flexibility in        temporary and
  erosion and sediment             permanent controls
  control plans                       Different plan sheets
                                      Same sheet
 Establishes an Erosion
                                  Separate pay items
  Control Supervisor
                               Working out details with
 Allows for actions to
                                AGC
  address noncompliance
                               Changes in Spec Book

Like a bad penny…
 More visits will be
  scheduled next year
   EPA Mandate
   SWPPP Reviews
   Project Site Reviews
   Mock Inspections
 Training
    NDDOT Staff
    Consultants
    Contractors

Questions?

Contact Information

         Matt Sperry
        ETS Division
        701‐328‐3486
       msperry@nd.gov