Third Party Inspection

The District has technical staff with expertise to perform site inspections under several different categories.  These include:

  • Construction Inspections
  • Erosion and Sedimentation Control Inspections
  • Post-Construction Best Management Practice (BMP) Inspections
  • Long Creek Private BMP Inspection
  • Chapter 500 Stormwater Site Law Inspections
  • Municipal Stormwater Compliance (MS4) Inspections

Additional information on each of these types of inspections are below.

Construction Inspections

Many municipalities and contractors are required to perform routine inspections of properties under construction. These inspections look at equipment storage, erosion and sedimentation control, condition of local roadways, waste management, the area of disturbed land, and storage of oil and chemicals on site. District staff can perform these inspections to support municipalities and contractors with limited staff, or can do them on behalf of municipalities and contractors to ensure compliance with conditions in permits and Planning Board approvals.

For more information on Construction Inspections, contact Aubrey Strause, District Engineer/ Stormwater Program Manager.

Erosion and Sedimentation Control Inspections

Proper control of sites is an important way to prevent sediment from entering our waterways. Whether a site is under construction or was recently constructed, District inspectors can evaluate the condition of land and determine if it is stabilized and at low risk for erosion.

District staff also perform Erosion and Sedimentation Control inspections routinely as part of our Technical Assistance program for residents and private road associations.

For more information on Erosion and Sedimentation Control Inspections, contact Aubrey Strause, District Engineer/ Stormwater Program Manager.

Post-Construction Best Management Practice (BMP) Inspections

Many structural BMPs provide treatment, detention, and infiltration of rain and melted snow to minimize the impact of runoff to local water bodies.  These BMPs may be high-tech proprietary devices or simple retention basins, but to function properly they must be regularly inspected and maintained.

District inspectors are knowledgeable about BMP maintenance and can evaluate the condition of the BMPs on your property.  If a BMP requires maintenance, our staff will provide you with guidance and resources to implement and document the work. Staff can also re-inspect the BMP after maintenance has been completed. Documentation of inspections and maintenance are required when recertifying most BMPs with DEP.

Many District staff members are certified by Maine DEP as Third Party Inspectors.

For more information on Post-Construction BMP Inspections, contact Scott Reynolds, District Watershed Specialist.

Long Creek Private BMP Inspections

The District is a technical service provider for the Long Creek Watershed Management District (LCWMD).  If you are a Participating Landowner in Long Creek, your property’s Operations and Maintenance Plan (O&M Plan) identifies the tasks that the LCWMD performs on your property and the structural BMPs on your property that the LCWMD inspects and maintains.

The O&M Plan also describes your responsibilities to maintain your private BMPs, including an annual inspection, required maintenance, and documentation of these activities. District staff are certified to serve as Third Party Inspectors for private BMPs for Long Creek Participating Landowners.

For more information on Long Creek Private BMP Inspections, contact Scott Reynolds, District Watershed Specialist.

Chapter 500 Stormwater Site Law Inspections

As a condition of permits issued by Maine DEP under the Chapter 500 Stormwater Site Law, the permit applicant may be required to hire a qualified Third-Party Inspector to monitor compliance with permit conditions during construction.

These inspectors ensure:

  • All construction and stabilization activities comply with the permit conditions and the DEP-approved drawings and specifications;
  • Field decisions regarding erosion control implementation, stormwater system installation, and natural resource protection are based on sound engineering and environmental considerations; and
  • Communication between the contractor and DEP regarding any changes to the approved Erosion Control Plan, Stormwater Management Plan, or final stabilization plan.

More information about the Chapter 500 inspection process can be found in DEP’s overview of their Third Party Inspection program.

Many District staff members are certified by Maine DEP as Third Party Inspectors.

For more information on Chapter 500 Stormwater Site Law Inspections, contact Troy Barry, District Engineer & Fluvial Geomorphologist.

Municipal Stormwater Compliance (MS4) Inspections

The District supports the 14 municipalities in the greater Portland and Saco areas that are regulated under DEP’s Municipal Separate Storm Sewer System (MS4) permit.  The MS4 Permit includes six Minimum Control Measures, one of which is Good Housekeeping and Pollution Prevention at municipal facilities.

Good Housekeeping inspections look at salt storage, vehicle maintenance facilities, above ground oil storage tanks, the condition of paved surfaces, erosion, fertilizer storage and application, vehicle washing practices, winter maintenance equipment, the condition of material storage areas, and other aspects of municipal facilities.

District staff are available to perform inspections of transfer stations, public works facilities, fire stations, highway garages, maintenance facilities, municipal offices, and many other types of properties to comply with a facility’s Stormwater Pollution Prevention Plan (SWPPP) or Spill Prevention, Control and Countermeasure (SPCC) Plan. Our staff are also available to perform screening inspections to give municipal staff an idea of where improvement is required.  District inspectors can also assist municipalities with required construction and post-construction inspections.

For more information on MS4 Inspections, contact Jodie Keene, District Municipal Outreach Coordinator, or Scott Reynolds, District Watershed Specialist.