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Soil Erosion and Sedimentation Control

SOIL EROSION AND SEDIMENTATION CONTROL (SESC) PROCEDURES FOR THE HOLLAND BPW

INTRODUCTION

Pursuant to Part 91, Soil Erosion and Sedimentation Control (SESC), of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended (Part 91) an SESC permit is typically required for any earth change that disturbs 1 or more acres or is within 500 feet of the water’s edge of a lake or stream.  However, a state, county, or municipal agency may apply to the Department of Natural Resources and Environment (DNRE) for designation as an Authorized Public Agency (APA) under the authority of Section 9110 of Part 91 and if designated an APA, the agency is granted the privilege to undertake earth change activities without having to obtain SESC permits from the appropriate county or municipal enforcing agency.  The APA designation does not, however, negate the need for obtaining all other applicable federal, state, and local permits prior to starting the earthwork.

These procedures have been approved by the DNRE.  The Holland BPW will undertake all earth change activities in accordance with the requirements set forth in these procedures.  All requirements of Part 91 and the administrative rules (Rules) promulgated under the authority of Part 91 are included in these procedures by reference.

The Holland BPW will anticipate and plan for potential SESC problems associated with all phases of a project, including clearing, rough grading, construction, final grading, restoration, and continued site maintenance.  All earth work will be performed in accordance with a comprehensive SESC plan which meets the requirements of Rule 323.1703 or will be done in accordance with approved maintenance guidelines referenced in these procedures.

A copy of these procedures will be provided to all Holland BPW and contract personnel engaged in or responsible for implementing Holland BPW’s SESC Program.  Those personnel are expected to understand and implement the contents of these procedures.  Standards and specifications referenced in these procedures are available to all Holland BPW and contract personnel.

These SESC procedures are subject to continuous review by Holland BPW staff and the DNRE and will be revised as standards and techniques for SESC evolve or when the Holland BPW changes how they perform earth change activities.  Any revisions to these procedures must be reviewed and approved by the DNRE prior to formal adoption by the HBPW.

All Holland BPW or contract personnel who are responsible for making SESC decisions, including but not limited to, developing or approving SESC plans, conducting inspections, or independently implementing SESC measures must have a valid SESC training certificate issued by the DNRE under the authority of Section 9123 of Part 91.  The Holland BPW will ensure that the individuals with decision-making authority who are responsible for administering the soil erosion and sedimentation control procedures have current certificates of training.  These positions currently include:

Water/Wastewater Services (W/WW) Superintendent
W/WW Engineering Supervisor
Environmental & Safety Specialist

STANDARDS AND SPECIFICATIONS

The most recent versions of the documents listed below guide the implementation of the SESC measures used by the Holland BPW: 

  1. Holland BPW Specification Section 02966 – Soil Erosion and Sedimentation Control
  2. MDNRE Soil Erosion and Sedimentation Control Training Manual 
  3. 2003 MDOT Standard Specifications for Construction
  4. MDOT Soil Erosion and Sedimentation Control Manual 
  5. Manufacturers’ and suppliers’ standards and specifications

PLANNING AND DESIGN

Effective control of erosion and off-site sedimentation begins with planning.  All earth work will be planned and designed in a manner that limits the amount and duration of exposed soil for the shortest period of time.  During the planning and design process, the Holland BPW commits to the following:

  1. Develop a comprehensive SESC plan in accordance with Rule 323.1703 for all earth change activities that disturb 1 or more acres or are within 500 feet of the water’s edge of a lake or stream.  The plan will clearly show the physical earth change limits of the project; location and installation details for all SESC measures; timing and sequencing schedule which identifies the installation schedule and maintenance requirements of each temporary and permanent SESC measure.
  2. Clarify in all plans, guidelines, or bid documents that:

    1. Temporary SESC measures shall be installed prior to, or upon commencement of, the earth change activity and that the temporary SESC measures will be removed only after permanent SESC measures are in place and the site is stabilized.
    2. Permanent SESC measures will be installed within 5 calendar days after final grading or completion of the final earth change.  If permanent stabilization of a disturbed area is not possible upon completion of the earth change, temporary SESC measures will be maintained until the site is stabilized.
    3. When a project cannot be completed and stabilized with vegetation during the growing season, other prescribed SESC measures will be implemented to temporarily stabilize the site until the next growing season.

EARTH WORK

All earth work, including the installation and maintenance of SESC measures, will be done in accordance with the SESC plan developed for the project or guidelines approved in these procedures.  Implementation of the temporary and permanent SESC measures will be done in accordance with the details and construction schedule in the plan, guidelines or special provisions.  In addition to, or in conjunction with, the requirements set forth in the plans and guidelines, the Holland BPW commits to the following:

  1. Install temporary SESC measures before or upon commencement of the earth change.
  2. Protect all storm water inlets that may be impacted by sediment, taking care to not cause street flooding.
  3. Maintain temporary SESC measures on a daily basis.
  4. Install permanent SESC control measures within 5 calendar days after final grading or the final earth change has been completed.
  5. Contain sediment on-site.
  6. Minimize dust and the off-site tracking of sediment.  Sediment tracked onto the street will be removed daily.
  7. Vegetative filters will be maintained whenever feasible, in conjunction with using silt fence, when working adjacent to lakes, streams, and wetlands.
  8. Excess soil will be temporarily stockpiled in upland areas and contained on-site.
  9. All earth work will be done in the dry by placing cofferdams or other similar structures around the work area when working in lakes, streams, and wetlands.

INSPECTIONS

Holland BPW or contract personnel with a valid SESC training certificate issued under the authority of Section 9123 of Part 91 will be responsible for periodically inspecting and documenting the condition of the individual SESC measures and general site conditions.  All sites will be inspected and conditions documented at least weekly and within 24 hours of a rain event that results in a discharge of water off the site from the beginning of the earth work until the site is stabilized.

If an inspector finds a condition that is or could result in a violation of Part 91, the Part 91 rules, or these procedures, he/she will identify the problem(s), determine the necessary corrective actions, and specify the time to correct the problem(s) on the inspection report form.  Any problem that results, or could result, in a discharge of sediment to a lake, stream, or wetland shall be corrected within 24 hours of the inspection.  All other identified problems will be corrected within 5 days.

MAINTENANCE OF SESC MEASURES

Maintenance includes implementing necessary repairs or corrections to the temporary SESC measures during construction and to the permanent SESC measures after the project is completed.  Temporary SESC measures shall be maintained daily until permanent controls are implemented and the site is stabilized.

Permanent control measures in need of repair shall be corrected as soon as possible, but always within 5 days of detection of the problem, unless the scope of the work or the season prevents such action, then temporary controls will be implemented and maintained until the permanent measures are repaired and the site stabilized.

ROUTINE MAINTENANCE OR EMERGENCY REPAIR ACTIVITIES

Routine maintenance activities are subject to the same SESC considerations and requirements as any other earth change activity undertaken by, or on behalf of, the Holland BPW.

Although routine field operations generally do not create the same potential for erosion as construction operations, they will be subject to the same considerations.  Sediment shall be contained on the project site, and water flow on and off the site shall be controlled at a non‑erosive velocity.  In lieu of developing formal plans, the following procedures will be followed for the identified field operations.

Trenching and excavations:  All soils disturbed by trenching will be back-filled and leveled immediately after completion of work.  The disturbed soil will be leveled with surrounding soil and covered with appropriate seed and mulch, blanket or anchored.  Stockpiling of soils will be done only as needed.  The stockpile will be located and maintained as to prevent erosion to nearby streams or lakes.

Dewatering:  For dewatering operations, erosion control and sedimentation will be addressed in both the uptake and discharge of groundwater.  The discharge will be maintained so that erosion of surrounding soils does not impact or reach area streams or lakes.  Additionally, if the water is to be discharged, either directly or indirectly, into surface waters, then precautions/controls will be taken to ensure soils are not removed during the uptake of water.

Water Main Repairs:  If the excavated soils are clay or saturated sand, they are removed from the site.  Asphalt is hauled from the site and stockpiled for future use as road base. Concrete is hauled to a recycling plant.  Adjacent storm inlets are protected with manufactured inlet protection systems.  Any disturbed soil will be permanently stabilized with seed and mulch, blanket or anchored.

Sewer Clean Out and Repair:  The sewers are cleaned using a vactor to suck waste out of the sewer.  Refuse from clean out of sanitary sewers is hauled to the Wastewater Treatment Plant.  Repairs of sewers are handled similarly to repair of water mains with the exception that the soils from around the sewer are moved by the vactor and transported to the wastewater treatment plant for disposal.

Pavement Patching:  Any old pavement that is removed is hauled from site and stockpiled for future use as road base. U.P.M. Cold Patch is applied to the area needed patching. There are no stockpiles of soils.

Sidewalk Replacement:  Sidewalk is removed and hauled off site for storage for reuse as stabilizing materials or rip‑rap. There is minimal soil disturbance and new sidewalk is formed and poured immediately after sidewalk removal. Adjacent storm inlets will be protected with geotextile fabric. Any disturbed soil will be permanently stabilized with seed and mulch, blanket or anchored.

Hydrant flushing:  The discharge will be located and maintained so that erosion of surrounding soils does not occur.

COMPLIANCE AND ENFORCEMENT

The Holland BPW is responsible to ensure that all earth work undertaken by, or on behalf of it, is in compliance with Part 91, the Part 91 rules, and these procedures.  All contracts let by the Holland BPW will contain clear language describing the responsibility of contractors to comply with these procedures and the consequences of noncompliance.  For projects administered solely by the Holland BPW, the W/WW Engineering Supervisor will administer the SESC program.

The following actions will be taken by the Holland BPW to ensure compliance:

Projects Undertaken by Holland BPW Staff:

  1. Train all individuals responsible for implementing and enforcing the Holland BPW’s Part 91 SESC Program.
  2. The W/WW Engineering Supervisor will issue directives to correct deficiencies within a specified time and place a copy of the directive in the responsible individual’s personnel file.
  3. Arrange for others to do the work such as in the cases where an engineering or construction manager/construction contract administrator firm is retained to oversee a project.

Projects Undertaken by Contractors:

  1. Require a bond, letter of credit or other surety to cover the cost of implementing and maintaining the temporary and permanent SESC measures.
  2. Include separate line item values for the installation, maintenance, and removal of temporary and permanent SESC measures.  Failure to implement and maintain the SESC measures per the SESC plan and contract will result in, stopping work, or using the line item value to pay another company to implement SESC.  The Holland BPW will request bids from secondary contractor in the event the original contractor does not fulfill their obligations.
  3. A contractor’s failure to perform in accordance with Part 91, the Part 91 rules, and these procedures will be reviewed when considering the contractor for any future SESC contracts.
  4. Regardless if the contractor is responsible for doing inspections, an Holland BPW inspector will inspect the site at least on a weekly basis and within 24 hours of a significant rain which results in runoff from the site.  This responsibility may be delegated to a consultant only if the consultant maintains a current DNRE certification in SESC.

Appendix A - Planning Checklist

 

A. A map or maps:
    1. At a scale of not more than 200 feet to the inch 
    2. With a legal description 
    3. With a site location sketch that includes the proximity of any proposed earth change to lakes or streams, or both; 
    4. Indicating predominant land features; 
    5. Indicating contour intervals or slope description. 
    6. Including a soils survey or a written description of the soil types of the exposed land area contemplated for the earth change.

      B.  Details for proposed earth changes, including all of the following:

    1. A description and the location of the physical limits of each proposed earth change.
    2. A description and the location of all existing and proposed on-site drainage and dewatering facilities.
    3. The timing and sequence of each proposed earth change.
    4. The location and description for installing and removing all proposed temporary soil erosion and sediment control measures.
    5. A description and the location of all proposed permanent soil erosion and sediment control measures.
    6. A program for the continued maintenance of all permanent soil erosion and sediment control measures that remain after project completion, including the designation of the person responsible for the maintenance.

Appendix B - HOLLAND BPW SESC SITE INSPECTION REPORT