ATTACHMENT 1 WILSON MINE LECROY AREA SEMIPERMANENT DEWATERING SYSTEM

Size: px
Start display at page:

Download "ATTACHMENT 1 WILSON MINE LECROY AREA SEMIPERMANENT DEWATERING SYSTEM"

Transcription

1 ATTACHMENT 1 WILSON MINE LECROY AREA SEMIPERMANENT DEWATERING SYSTEM Reclamation plans for the Wilson Mine Lecroy area were approved by the Arkansas Department of Environmental Quality with a passive barrier to treat groundwater. The barrier, designated as the sulfat.e-reduci~g barrier (SRB), is shown on Sheet 2, of the drawings in the submittal for a construction permit. '\ The effectiveness of the SRB must be monitored for several months before final modifications, if any, can be designed and constructed. The monitoring is necessary to determine if the lateral and vertical extent of the barrier is adequate and to determine the effectiveness of the materials in the barrier to improve groundwater quality. During this monitoring period, some groundwater in the vicinity of the SRB must be collected and pumped to East Wilson Pond prior to discharge through the pond's National Pollutant Discharge Elimination System (NPDES) discharge point. ~ The drawings submitted support our request for a permit to consti1lct a system to collect3q4 pump the groundwater to East Wilson Pond. The major components of the design include a line of well points at the east and west end of the existing SRB, a tank for storage of water prior to FOnd. p~ng, Theand storagea pump tanktoandlifthethepump water will over be the sizedhill after between data isthe collected Lecroyduring area and construction the Wilson the volume of water that.n~.q~ping. We anticipate that this system will have a life of between one and possibly three years. We anticipate a time period of no more than six months to a year to collect the necessary data to evaluate the need for a reconfiguration of the existing SRB. The additional time will be required for design, contracting, and the availability of corporate funds for reclamation. Assuming the availability of corporate funds, we think the most likely time frame to begin construction of a revised barrier would be the summer of2007. The goal of the new barrier will be to clean up the shallow groundwater entering Indian Creek downgradient of the site. When this goal is accomplished, there will no longer be a need to pump water from the Lecroy area back to East Wilson Pond. C:\PF\962-05\ \131Ia\Pennit Application Revision\Attachmentl.doc NPDES PERMIT FilE NPDES # fir CJO '-I R95 ()c... AFIN # ;;10-60;;; ", Permit PN Correspondence ----Technical Backup I -.:15-01 ~ Dafe Scanned

2 ATTACHMENT 2 vvl~i MEMORANDUM To: From: Date: Re: Umetco Wilson Mine Lecroy File Waste Engineering, Inc. T. Andrew Earles, Ph.D., P.E. ~ ~ ~I;:.S.. ~ ~\\ ~4AJ\!O ~..".~ -..:.J.DAEW ~~,I' P;,-"y,,11 Basis of Design for Erosion and Sediment Controls for Stabilization Phase of Parcels C, D, E and Borrow Area Reclamation ~ This memorandum provides the basis of design for erosion and sediment control measures for the stabilization phase of reclamation work on Parcels C, D, E and the Borrow Area of the Umetco Wilson Mine Lecroy area in Hot Springs, Arkansas. The purpose of erosion and sediment control during this phase is to reduce erosion and promote sedimentation from the time grading activities at the site are completed to the point where stable vegetative cover of disturbed areas is established. Figures, drawings, and reports describing the location of the project, details of construction activities including grading and drainage plans, and approved construction drawings are included in the project file and are incorporated in this memorandum by reference. GUIDING DOCUMENTS The following regulatory documents were the primary guiding documents used in preparation of this memorandum: National Pollutant Discharge Elimination System (NPDES) General Permit No. ARR (Medium and Large Construction), Arkansas Department of Environmental Quality (ADEQ), NPDES Permit No. ARt048950, Authorization to Discharge Under the NPDES and the Arkansas Water and Air Pollution Control Act for Umetco Minerals Corporation d/b/a Wilson Mine, ADEQ, Storm water Pollution Prevention Plan (SWPPP) for Site Activities at: Umetco Minerals Corporation Lecroy and Indian Creek Area, Wilson Vanadium Mine, Garland County Arkansas, Remedial Construction Services, Inc., April City of Hot Springs, Arkansas, Storm water Management Manual, Section 1100 Sediment and Erosion Control, City of Hot Springs, Arkansas, Internet version from June Waste Engineering. Inc Alcott Street, Denver, CO Tel. 303/ ; Fax. 303/ ,

3 Page 2 In addition Waste Engineering, Inc. (WEI) incorporated selected guidance ITom the following references in developing the erosion and sediment control strategy for stabilization of Parcels C, D, E and the Borrow Area: Conservation Practices for the Reclamation of Surface Mines in Arkansas, ADEQ (J.F. Stephens, R.S. Rogers and P.K. Fields), Water Environment Federation (WEF)/American Society of Civil Engineers (ASCE) Manual of Practice (MOP) 87, Urban Runoff Quality (WEF/ASCE MOP), WEF /ASCE, Denver Urban Drainage and Flood Control District (UDFCD) Urban Storm Drainage Criteria Manual, Volume 3, UDFCD, EROSION AND SEDIMENT CONTROL STRATEGY The following section describes erosion and sediment control best management practices (BMPs) that will be used for the final stabilization of Parcels C, D, E and the Borrow Area. For each BMP, the description includes the purpose of the BMP, the design criteria for the BMP, and maintenance recommendations. BMPs are shown on the drawing that is included as Attachment 1. Seeding and Mulching Seeding with a permanent seed mixture and mulching are the primary erosion control BMPs for Parcels C, D, E and the Borrow Area. The purpose of seeding and mulching is to establish permanent ground cover that will be resistant to erosion in a manner that is similar to vegetative cover in adjacent areas that were not disturbed as a part of construction. All disturbed areas will be seeded and mulched in accordance with Section of the project specifications, dated September Seeding and mulching are expected to occur in May and June The primary inspection/maintenance activities associated with this BMP will be monitoring success of revegetation and reseeding/re-mulching of areas where revegetation has not been successful. Revegetation progress and reseeding/re-mulching (if any) should be documented in required SWPPP inspections (at least once per week and following any storm event of 0.5 inch or greater). Silt Fence Silt fence will be used as perimeter control on the down gradient side of disturbed areas and will be used along contours on slopes to reduce rill and gulley erosion. Locations for silt fence are shown on the attached drawing. Silt fence around the downgradient perimeter of disturbed areas will provide sedimentation (via filtration) for runoff leaving the site, and silt fence along contours of graded slopes will provide filtration of runoff and may serve to reduce the effective length of the slope. Silt fence will be installed according to Section of the City of Hot Springs, Arkansas,

4 Page 3 Stormwater Management Manual. Spacing of silt fence on graded slopes shall conform to the following criteria: Slope (Horizontal:Vertical) 2:1 3:1 4:1 5: 1 and milder Spacing (Feet) Silt fence should be inspected during weekly SWPPP inspections and after any storm event of 0.5 inch or greater. It should be inspected at least once every 24 hours during prolonged rainfall events. Repairs should be made as soon as practical following the inspection, preferably as the inspection occurs. When the height of sediment trapped behind the silt fence reaches one-third of the total height of the barrier, accumulated sediment should be removed. Sedimentation/Detention Basins Two sedimentation/detention basins will serve as BMPs for approximately 24 acres of the site 17.4 acres tributary to the East Pond and 6.9 acres tributary to the South Pond. The remainder of the area addressed by this memorandum is less than 5 acres and will use sediment traps created by check dams rather than a formal sedimentation basin as a BMP. The East and South Ponds are shown on the attached drawing. The purpose of the ponds will be to promote sedimentation by creating extended detention. The ponds will also provide peak attenuation, which will promote downstream channel stability. Existing detention pond outlets will be modified to provide a 48 hour drawdown time for the design volume. The 48-hour drawdown time exceeds typical drawdown time for extended detention facilities (typically 40 hours [UDFCD 1999]) and represents a high level of treatment based on the sizing methodology in the WEF/ASCE MOP. The design volumes for the two ponds were determined by applying the sizing criteria in the City of Hot Springs, Arkansas, Storm water Management Manual of 3,600 square feet of storage per disturbed acre. Design volumes are 1.4 acre-feet for the east pond and 0.6 acre-feet for the south pond. This sizing is conservative because all of the tributary drainage areas to the ponds were assumed disturbed when, in reality, there are some areas that have not been disturbed. As a check, WEI applied the water quality capture volume (WQCV) sizing methodology in the WEF/ASCE MOP assuming a 48-hour drain time and 80 percent effective imperviousness (to account for soil compaction, lack of cover, and the underlying liner over a large portion of the area). The WQCV calculations agreed very closely with the design volumes determined using the City of Hot Springs' criteria. For the East Pond, the 1.4 acre-foot design volume will be drained over a period of 48 hours using an orifice plate or perforated riser with 1 column and 6 rows of 2.25-inch-diameter circular orifices. The invert elevation of the bottom orifice will correspond to the existing pond outlet invert of feet, and orifices will be arranged in a vertical column spaced 4 inches on center. An

5 Page 4 engineered riprap channel designed to dissipate energy in East Pond outflows for up to the 100-year event provides outlet protection. Additional outlet protection is not necessary. For the South Pond, the 0.6-acre-foot design volume will be drained over a period of 48 hours using an orifice plate or perforated riser with 2 columns and 3 rows of 1.75-inch diameter circular orifices. The invert elevation of the bottom row of orifices will correspond to the existing pond outlet invert of feet and orifices will be arranged in a vertical column spaced 4 inches on center. An engineered riprap channel designed to dissipate energy in South Pond outflows for up to the 100-year event provides outlet protection. Additional outlet protection is not necessary. Regular observation and maintenance will be required to assure that pond outlets are functioning as intended. The outlet should be inspected weekly, as required by the SWPPP, and after any storm event of 0.5 inch or greater to assure that it is free of debris and accumulated sediment and that orifice openings are not obstructed. During these inspections, accumulated sediment in the pond should be estimated, and sediment should be removed before it accumulates to more than one-half of the design volume. (The depth of sediment relative to the design depth above the invert of the lowest orifice is a conservative surrogate for the volume of accumulated sediment.) Once vegetation has been successfully established (minimum of 70 percent of pre-disturbance vegetative cover), sediment from the pond should be removed to restore the design capacity of the pond, and temporary modifications to pond outlets should be removed to allow permanent outlets to function as designed. Check Dams A series of rock check dams will serve as the primary BMP for the 2.I-acre disturbed area southwest of the South Pond. These check dams are shown on the attached drawing. Check dams will be constructed at approximately 100-foot intervals along the drainageway, running from the northwest to the southeast. The terminal check dam, located at the point where the channel leaves the area of disturbance, is intended to serve as a sediment trap and to create shallow ponding in the relatively flat area north and east of the structure. Rock check dams will have a minimum boulder size of 36-inches in diameter and will serve stream stabilization functions even after vegetation is successfully established on disturbed areas. A straw bale check dam below the terminal rock check dam, installed in accordance with City of Hot Springs criteria, will provide a final layer of filtration before runoff leaves the project area. The purposes of the check dams are to promote channel stability and sedimentation by slowing runoff and backing up water, which allows sediment to settle rrom runoff. Check dams should be inspected and maintained, as necessary, during weekly SWPPP inspections and following any storm event of 0.5 inch or greater. Maintenance may include removal of sediment accumulated behind check dams (before accumulated sediments exceed onehalf of the available storage capacity) and replacement of straw bales for the straw bale check dam below the terminal rock check dam.

6 Page 5 CONCLUSIONS The erosion and sediment control strategy outlined in this memorandum and attachments meets and exceeds the minimum regulatory requirements for the project area. BMPs should be installed in accordance with City of Hot Springs criteria, and inspection and maintenance, as described above, are essential. This erosion and sediment control plan is intended to minimize slope erosion and sediment transport from the area of disturbance for relatively frequently occurring events (i.e. up to the 2-year event); this is consistent with the national and local states of the practice. Larger events may cause runoff and erosion that exceeds the design capacity of the BMPs described above. Attachments Attachment 1 (Drawing): Erosion and Sediment Control Plan for Stabilization Phase of Parcels C, D, E and Borrow Area Reclamation cc: David Jubenville, P.E., Project Manager Jeff Nelson, P.E., Project Engineer C:\PF\962'{)51 \131Ia\l'ennit Application Revision\Attachment2AE.doc

Shelbyville, KY Stormwater Best Management Practices. Section 2 EROSION PREVENTION AND SEDIMENT CONTROL PLAN

Shelbyville, KY Stormwater Best Management Practices. Section 2 EROSION PREVENTION AND SEDIMENT CONTROL PLAN Section 2 EROSION PREVENTION AND SEDIMENT CONTROL PLAN 2.1 Requirements The City of Shelbyville, KY will require an Erosion Prevention and Sediment Control (EPSC) Plan for most types of development construction.

More information

SUPPORTING DOCUMENT STORMWATER POLLUTION PREVENTION PLAN (SWPPP) NARRATIVE

SUPPORTING DOCUMENT STORMWATER POLLUTION PREVENTION PLAN (SWPPP) NARRATIVE SUPPORTING DOCUMENT STORMWATER POLLUTION PREVENTION PLAN (SWPPP) NARRATIVE Please complete this narrative form and submit with your SWPPP drawings. Refer to Kitsap County Stormwater Design Manual Vol.

More information

MANUAL OF DESIGN, INSTALLATION, AND MAINTENANCE REQUIREMENTS FOR STORMWATER MANAGEMENT PLANS

MANUAL OF DESIGN, INSTALLATION, AND MAINTENANCE REQUIREMENTS FOR STORMWATER MANAGEMENT PLANS MANUAL OF DESIGN, INSTALLATION, AND MAINTENANCE REQUIREMENTS FOR STORMWATER MANAGEMENT PLANS May 2007 SECTION 1 Responsibility of Applicant TABLE OF CONTENTS A. Stormwater Management Plan Required Information

More information

Structural Storm Water Best Management Practices (BMPs)

Structural Storm Water Best Management Practices (BMPs) Structural Storm Water Best Management Practices (BMPs) Storm Water Permitting: The SWPPP Revealed By Deron Austin, PE January 11, 2006 3:30-5:00 PM Orlando, Florida Presentation Outline Preface About

More information

CITY OF TUMWATER 555 ISRAEL RD. SW, TUMWATER, WA (360) (360) (FAX)

CITY OF TUMWATER 555 ISRAEL RD. SW, TUMWATER, WA (360) (360) (FAX) CITY OF TUMWATER 555 ISRAEL RD. SW, TUMWATER, WA 98501 (360) 754-4180 (360) 754-4126 (FAX) Email: cdd@ci.tumwater.wa.us APPENDIX II-C SHORT FORM CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (SWPPP)

More information

C-12. Dry Pond. Design Objective

C-12. Dry Pond. Design Objective C-12. Dry Pond Design Objective The primary purpose of dry pond is to attenuate and delay stormwater runoff peaks. Dry ponds hold water immediately after a storm event and drain to be almost complete dry

More information

CHECKLIST FOR PHASE II DRAINAGE REPORT

CHECKLIST FOR PHASE II DRAINAGE REPORT I. COVER SHEET CHECKLIST FOR PHASE II DRAINAGE REPORT A. Name of Project B. Address C. Owner D. Developer E. Engineer F. Submittal date and revision dates as applicable II. GENERAL LOCATION AND DESCRIPTION

More information

Chapter 14. Stormwater Quality Introduction

Chapter 14. Stormwater Quality Introduction 14.0 Introduction This chapter addresses requirements and design criteria related to post-construction stormwater best management practices (requirements for construction erosion and sediment control are

More information

Using the Updated RI Soil Erosion and Sediment Control Handbook. The Introductory Workshop for RIDEM/CRMC Staff January 23, 2015

Using the Updated RI Soil Erosion and Sediment Control Handbook. The Introductory Workshop for RIDEM/CRMC Staff January 23, 2015 Using the Updated RI Soil Erosion and Sediment Control Handbook The Introductory Workshop for RIDEM/CRMC Staff January 23, 2015 URI Cooperative Extension NEMO URI Cooperative Extension NEMO White Oak,

More information

RAIN GARDEN ILLINOIS URBAN MANUAL PRACTICE STANDARD. (feet) CODE 897 DEFINITION

RAIN GARDEN ILLINOIS URBAN MANUAL PRACTICE STANDARD. (feet) CODE 897 DEFINITION ILLINOIS URBAN MANUAL PRACTICE STANDARD RAIN GARDEN (feet) CODE 897 Source: Kendall County Soil and Water Conservation District DEFINITION Rain gardens are small, shallow, flat bottomed depressions constructed

More information

Vegetated Filter Strips and Buffers

Vegetated Filter Strips and Buffers 3.15 Sediment Control Description: Buffer strips (existing vegetation) and filter strips (planted vegetation) are sections of vegetated land adjacent to disturbed areas. They are designed with low slopes

More information

New Development Stormwater Guidelines

New Development Stormwater Guidelines New Development Stormwater Guidelines CITY OF MOUNTLAKE TERRACE Table of Contents Introduction... 2 Ecology s Minimum Requirements for stormwater management... 2 Description of the 9 Minimum Requirements...

More information

Vegetated Filter Strips and Buffers

Vegetated Filter Strips and Buffers 3.15 Sediment Control Description: Buffer strips (existing vegetation) and filter strips (planted vegetation) are sections of vegetated land adjacent to disturbed areas. They are designed with low slopes

More information

City of Stoughton Erosion Control Permit Application (effective 2/6/2018)

City of Stoughton Erosion Control Permit Application (effective 2/6/2018) City of Stoughton Erosion Control Permit Application (effective 2/6/2018) Incomplete applications will not be accepted Project Name: Address of subject property: Landowner Name(s): Applicant Name: Landowner

More information

Pennsylvania Stormwater Best Management Practices Manual. Chapter 1. Introduction and Purpose

Pennsylvania Stormwater Best Management Practices Manual. Chapter 1. Introduction and Purpose Pennsylvania Stormwater Best Management Practices Manual Chapter 1 Introduction and Purpose Chapter 1 Introduction and Purpose 1.1 Purpose of this Manual 1 1.2 How to Use this Manual...1 1.3 Overview

More information

Post Construction BMPs

Post Construction BMPs Post Construction BMPs Why are Post Construction BMPs important? With increased development brings the increase of impervious cover Parking lots, rooftops, driveways Storm water runoff volume increases

More information

Key elements : Filter Strips must be designed within parameters required by the Fort Wayne s Development Standards/Criteria Manual.

Key elements : Filter Strips must be designed within parameters required by the Fort Wayne s Development Standards/Criteria Manual. 4.4. Filter Strips Filter Strips are densely vegetated lands that treat sheet flow storm water from adjacent pervious and impervious areas. They function by slowing runoff, trapping sediment and pollutants,

More information

Draft Rhode Island Stormwater Design and Installation Standards Manual

Draft Rhode Island Stormwater Design and Installation Standards Manual Draft Rhode Island Stormwater Design and Installation Standards Manual Summary The May 2009 Public Review Draft version of the RI Stormwater Design and Installation Standards Manual consists of approximately

More information

A. INTRODUCTION AND SUMMARY OF FINDINGS B. EXISTING CONDITIONS. Table 10-1 Adjacent Storm Drains

A. INTRODUCTION AND SUMMARY OF FINDINGS B. EXISTING CONDITIONS. Table 10-1 Adjacent Storm Drains Chapter 10: Stormwater Management A. INTRODUCTION AND SUMMARY OF FINDINGS This chapter describes existing and proposed stormwater management on the Site. Potential impacts to stormwater infrastructure

More information

5. LOW IMPACT DEVELOPMENT DESIGN STANDARDS

5. LOW IMPACT DEVELOPMENT DESIGN STANDARDS 5. LOW IMPACT DEVELOPMENT DESIGN STANDARDS Low Impact Development (LID) requires a shift in stormwater management away from conveying runoff to a small number of downstream points through hydraulically

More information

SOP 6: Erosion and Sedimentation Control SOP 6: EROSION AND SEDIMENTATION CONTROL

SOP 6: Erosion and Sedimentation Control SOP 6: EROSION AND SEDIMENTATION CONTROL Standard Operating Procedures Central Massachusetts Regional Stormwater Coalition SOP 6: Erosion and Sedimentation Control SOP 6: EROSION AND SEDIMENTATION CONTROL Erosion and sedimentation from land-disturbing

More information

A. Install all temporary erosion control measures (in accordance with MNDOT General Conditions 2573) prior to site disturbance.

A. Install all temporary erosion control measures (in accordance with MNDOT General Conditions 2573) prior to site disturbance. The language provided in these specifications is meant to serve as a reminder and provide a generic example of the type of language that should be provided in final construction documents. This language

More information

WQ-23 MOUNTAINOUS AND STEEP SLOPE SITES

WQ-23 MOUNTAINOUS AND STEEP SLOPE SITES Greenville County Technical Specification for: WQ-23 MOUNTAINOUS AND STEEP SLOPE SITES 1.0 Mountainous and Steep Slope Sites 1.1 Description The geographic locations of portions of Greenville County are

More information

Landfill Closure, Intermediate Cover & Post-Closure Care. Municipal League Meeting

Landfill Closure, Intermediate Cover & Post-Closure Care. Municipal League Meeting Landfill Closure, Intermediate Cover & Post-Closure Care Municipal League Meeting 9-7-17 Gated and Closed Landfill Gated means no longer accepting waste. Closed means gated and final cover has been installed

More information

Urban Planning and Land Use

Urban Planning and Land Use Urban Planning and Land Use 701 North 7 th Street, Room 423 Phone: (913) 573-5750 Kansas City, Kansas 66101 Fax: (913) 573-5796 Email: planninginfo@wycokck.org www.wycokck.org/planning To: From: City Planning

More information

CHAPTER 9 STORM DRAINAGE. Minimum Requirements for New Development and Redevelopment

CHAPTER 9 STORM DRAINAGE. Minimum Requirements for New Development and Redevelopment CHAPTER 9 STORM DRAINAGE 9.01 General The standards established by this chapter are intended to represent the minimum standards for the design and construction of storm drainage facilities. 9.02 Design

More information

Protect Stormwater Quality Project and Site Management Training for General Contractors. Presenter Becky Pearson Professional Civil Engineer

Protect Stormwater Quality Project and Site Management Training for General Contractors. Presenter Becky Pearson Professional Civil Engineer Protect Stormwater Quality Project and Site Management Training for General Contractors Presenter Becky Pearson Professional Civil Engineer Part II Best Management Practices (BMPs) What is a Best Management

More information

Pollutant Removal Benefits

Pollutant Removal Benefits Bioswales Bioswales Similar to biocells, but have a slight, but positive grade toward an outlet Designed to convey the WQv event at very low velocities Promote filtration through native vegetation, infiltration

More information

When planning stormwater management facilities, the following principles shall be applied where possible.

When planning stormwater management facilities, the following principles shall be applied where possible. 2.0 Principles When planning stormwater management facilities, the following principles shall be applied where possible. 2.0.1 Drainage is a regional phenomenon that does not respect the boundaries between

More information

Huntington Stormwater Utility

Huntington Stormwater Utility Huntington Stormwater Utility Stormwater Management & Sediment and Erosion Control Requirements for Construction Sites Authorized by Huntington City Code Articles: 971, 970, 930, 935, 955, Revised April

More information

Project Applicant Checklist for NPDES Permit Requirements SAN MATEO COUNTYWIDE STORMWATER POLLUTION PREVENTION PROGRAM

Project Applicant Checklist for NPDES Permit Requirements SAN MATEO COUNTYWIDE STORMWATER POLLUTION PREVENTION PROGRAM Project Applicant Checklist for NPDES Permit Requirements SAN MATEO COUNTYWIDE STORMWATER POLLUTION PREVENTION PROGRAM I. PROJECT DATA Project Name Bay Meadows Development Phase II Project Address 2600

More information

Use of Best Management Practices

Use of Best Management Practices Use of Best Management Practices Presented at the ANJEC Flood Hazard Workshop Bordentown, NJ March 13, 2008 Stormwater BMPs "a technique, measure or structural control that is used for a given set of conditions

More information

Information for File # JTF

Information for File # JTF Information for File # 2013-04665-JTF Applicant Corps Contact Enbridge Energy, Limited Partnership Josh Fitzpatrick Address 1554 Highway 2, Suite 2, Two Harbors, MN 55616 E-Mail joshua.t.fitzpatrick@usace.army.mil

More information

Gloucester County PLAN SUBMITTER'S CHECKLIST

Gloucester County PLAN SUBMITTER'S CHECKLIST Page 1 of 9 Gloucester County PLAN SUBMITTER'S CHECKLIST FOR EROSION AND SEDIMENT CONTROL PLANS Please fill in all blanks and please reference the plan sheets/pages where the information may be found,

More information

Illinois Urban Manual

Illinois Urban Manual Illinois Urban Manual Jim Nelson: Association of Illinois Soil and Water Conservation Districts (AISWCD) Funding for this project provided, in part, by the Grand Victoria Foundation of Elgin IL, the Governor

More information

PRELIMINARY DRAINAGE REPORT LATHAM 200 MMSCFD GAS PROCESSING PLANT

PRELIMINARY DRAINAGE REPORT LATHAM 200 MMSCFD GAS PROCESSING PLANT PRELIMINARY DRAINAGE REPORT LATHAM 200 MMSCFD GAS PROCESSING PLANT LOTS B, RECORDED EXEMPTION 1211-2-1, RECX13-0096 LOCATED IN THE NORTH 1/2 OF SECTION 2, TOWNSHIP 3 NORTH, RANGE 66 WEST, 6 TH PRINCIPAL

More information

Plan Review Checklist

Plan Review Checklist Plan Review Checklist FOR EROSION AND SEDIMENT CONTROL PLANS _ Minimum Standards - All applicable Minimum Standards must be addressed. All minimum Standards must be adhered to during the entire project

More information

STORMWATER SITE PLAN INSTRUCTIONS AND SUBMITTAL TEMPLATE Medium and Large Projects

STORMWATER SITE PLAN INSTRUCTIONS AND SUBMITTAL TEMPLATE Medium and Large Projects DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street, Port Townsend, WA 98368 Tel: 360.379.4450 Fax: 360.379.4451 Web: www.co.jefferson.wa.us/communitydevelopment E-mail: dcd@co.jefferson.wa.us STORMWATER

More information

EROSION & SEDIMENT CONTROL

EROSION & SEDIMENT CONTROL EROSION & SEDIMENT CONTROL Surface Water Protection During Well Site Construction Kelly Kees, PE WVDEP, Office of Oil and Gas SEDIMENT & EROSION CONTROL PLANS Per West Virginia State Code 22-6-6(d) 22-6A-7(c),

More information

A. Regional Detention Requirements

A. Regional Detention Requirements I. GENERAL DESIGN GUIDELINES A. Full-spectrum detention is provided for all new development, redevelopment or expansion of a site to provide for water quality and flood control detention. B. Detention

More information

Project: Developer/Designer: Reviewer: I. Narrative: 1. Project Description: Describes the nature and purpose of the land disturbing activity.

Project: Developer/Designer: Reviewer: I. Narrative: 1. Project Description: Describes the nature and purpose of the land disturbing activity. City of Charlottesville, Virginia Erosion and Sediment Control Plan Review Checklist 610 East Market Street, Charlottesville, VA 22902 Telephone 434-970-3182; Fax 434-970-3359 Project: Developer/Designer:

More information

October 7, City of Thornton 9500 Civic Center Drive Thornton, CO (303) RE: Maverik Thornton, CO - Drainage Report

October 7, City of Thornton 9500 Civic Center Drive Thornton, CO (303) RE: Maverik Thornton, CO - Drainage Report October 7, 2016 City of Thornton 9500 Civic Center Drive Thornton, CO 80229 (303) 538-7295 RE: Maverik Thornton, CO - Drainage Report As per your request, we are submitting to you the drainage report and

More information

2008 SWMM, 2010 Revision City of Tacoma

2008 SWMM, 2010 Revision City of Tacoma 2008 SWMM, 2010 Revision City of Tacoma 2.2.3.1 BMP L630 Rain Gardens Purpose and Definition Bioretention areas are shallow stormwater retention facilities designed to mimic forested systems by controlling

More information

SEMSWA s Role in the Land Development Process

SEMSWA s Role in the Land Development Process SEMSWA s Role in the Land Development Process One of SEMSWA s responsibilities is to ensure that any new development or redevelopment within its service area is designed and constructed in compliance with

More information

General Information. Site Conditions. 9b 9b. 9a 1b. Best Management Practices Illustration

General Information. Site Conditions. 9b 9b. 9a 1b. Best Management Practices Illustration Model Construction SWPPP Planning & Development Services 1800 Continental Place Mount Vernon WA 98273 voice 360-416-1320 inspections 360-416-1330 www.skagitcounty.net/stormwaterpermitting Permit #: General

More information

SOIL EROSION AND SEDIMENT CONTROL

SOIL EROSION AND SEDIMENT CONTROL SOIL EROSION AND SEDIMENT CONTROL SECTION 1: AUTHORITY, TITLE AND PURPOSE 11. STATUTORY AUTHORIZATION This ordinance is adopted pursuant to the provisions of the Federal Water Pollution Control Act 86

More information

Erosion & Sediment Control Plan Application Form & Checklist

Erosion & Sediment Control Plan Application Form & Checklist Erosion & Sediment Control Plan Application Form & Checklist GENERAL INFORMATION Application Date: Project Address: Tax Map / Parcel Number(s): PROPERTY OWNER / DEVELOPER Firm Name: Contact Person: Title:

More information

CHAPTER 4. SPECIAL CONDITION EROSION CONTROL MEASURES

CHAPTER 4. SPECIAL CONDITION EROSION CONTROL MEASURES CHAPTER 4. SPECIAL CONDITION EROSION CONTROL MEASURES 4.1 INFILTRATION BASIN AND TRENCH Figure 4.1. Infiltration basin and trench (Source: Department of Civil, Construction, and Environmental Engineering,

More information

6.1 Bioretention Areas

6.1 Bioretention Areas SAN MATEO COUNTYWIDE WATER POLLUTION PREVENTION PROGRAM 6.1 Bioretention Areas Figure 6-1. Bioretention Area. Source: City of Brisbane Bioretention areas 1, or rain gardens, are concave landscaped areas

More information

Project: Mooney Lake Preserve Received: Location: 300 Sixth Ave. N., Orono Complete: Noticed:

Project: Mooney Lake Preserve Received: Location: 300 Sixth Ave. N., Orono Complete: Noticed: Permit Application No.: 15-445 Rules: Erosion Control, Wetland Protection, & Stormwater Management Applicant: BPS Properties, LLC Project: Mooney Lake Preserve Received: 8-24-15 Location: 300 Sixth Ave.

More information

Urban Conservation Practice Physical Effects ESTABLISHMENT, GROWTH, AND HARVEST NUTRIENT MANAGEMENT

Urban Conservation Practice Physical Effects ESTABLISHMENT, GROWTH, AND HARVEST NUTRIENT MANAGEMENT NOT WELL 800 - Urban Stormwater Wetlands A constructed system of shallow pools that create growing conditions for wetland plants to lessen the impacts of stormwater quality and quantity in urban areas.

More information

5. FINAL DEVELOPMENT PLAN APPROVAL MENORAH MEDICAL CENTER OFFICE BUILDING Vicinity of the southwest corner of 119 th Street and Nall Avenue

5. FINAL DEVELOPMENT PLAN APPROVAL MENORAH MEDICAL CENTER OFFICE BUILDING Vicinity of the southwest corner of 119 th Street and Nall Avenue 5. FINAL DEVELOPMENT PLAN APPROVAL MENORAH MEDICAL CENTER Avenue 1. APPLICANT: Hoefer Wysocki Architects, L.L.C., is the applicant for this request. 2. REQUESTED ACTION: The applicant is requesting final

More information

Urban Water Management (ESRM 311 & SEFS 507) Cougar Mtn Regional Wildland Park & Lakemont Blvd, Bellevue WA

Urban Water Management (ESRM 311 & SEFS 507) Cougar Mtn Regional Wildland Park & Lakemont Blvd, Bellevue WA Urban Water Management (ESRM 311 & SEFS 507) Cougar Mtn Regional Wildland Park & Lakemont Blvd, Bellevue WA Lecture Today Urban Water management terms Examples of water management in urban areas Field

More information

WAKE COUNTY STORMWATER MAINTENANCE CHECKLIST

WAKE COUNTY STORMWATER MAINTENANCE CHECKLIST WAKE COUNTY STORMWATER MAINTENANCE CHECKLIST STORMWATER CONTOL STRUCTURE BIORETENTION MAINTENANCE AGREEMENT RESPONSIBLE PARTY: PHONE #: ADDRESS: a. Remove debris from bioretention area. b. Inspect for

More information

Learning from Nature: Reducing Urban Stormwater Impacts

Learning from Nature: Reducing Urban Stormwater Impacts This article was published in the Spring, 2005 Issue of LakeLine magazine It is posted on the Urban Drainage and Flood Control District s web site with the authors and the publishers permission to the

More information

A. Install all temporary erosion control measures (in accordance with MNDOT General Conditions 2573) prior to site disturbance.

A. Install all temporary erosion control measures (in accordance with MNDOT General Conditions 2573) prior to site disturbance. The language provided in these specifications is meant to serve as a reminder and provide a generic example of the type of language that should be provided in final construction documents. This language

More information

Wisconsin Contractors Institute Continuing Education

Wisconsin Contractors Institute Continuing Education Wisconsin Contractors Institute Continuing Education Erosion & Sediment Control Course # 12775 2 hours Wisconsin Contractors Institute N27 W23953 Paul Road, Suite 203 Pewaukee, WI 53072 Website: www.wicontractorsinstitute.com

More information

Lincoln 270. City of Lincoln. Stormwater Management Plan. April 2, 2013

Lincoln 270. City of Lincoln. Stormwater Management Plan. April 2, 2013 Lincoln 270 City of Lincoln Stormwater Management Plan April 2, 2013 # 2005.48 Prepared By: Civil Engineering Solutions, Inc. 590 E Street Lincoln, Ca 95648 (916) 645 5700 1.0 Background: The project site

More information

Table 4.7.1: Swales Potential Application and Storm Water Regulation

Table 4.7.1: Swales Potential Application and Storm Water Regulation 4.7. Swales A swale is a vegetated open channel, planted with a combination of grasses and other herbaceous plants, shrubs, or trees. A traditional swale reduces peak flow at the discharge point by increasing

More information

CHAPTER 5: SITE DEVELOPMENT

CHAPTER 5: SITE DEVELOPMENT CHAPTER 5: SITE DEVELOPMENT SECTION 5.1 GRADING, DRAINAGE, AND EROSION AND SEDIMENT CONTROL... 1 A. General... 1 1. Natural Features... 1 2. Plant Materials... 1 3. Drainage, Sedimentation, Erosion...

More information

Chapter 1: General Program Information

Chapter 1: General Program Information Chapter 1: General Program Information 1.1 Introduction The Montgomery County Stormwater Management Resolution (#03-1-5) was adopted by the County Board of Commissioners on January 22, 2003. The purpose

More information

Bioretention cell schematic key

Bioretention cell schematic key Bioretention Cells Bioretention cell schematic key 1 3 Hardwood mulch 2 Curb cut 3 18-30 Modified soil 4 Stone aggregate choker layer 5 Stone aggregate base layer 6 Subdrain 7 Undisturbed soil 8 Overflow/Cleanout

More information

PLAN SUBMITTER'S CHECKLIST

PLAN SUBMITTER'S CHECKLIST Page 1 of 8 PLAN SUBMITTER'S CHECKLIST FOR EROSION AND SEDIMENT CONTROL PLANS Please fill in all blanks and reference the plan sheets/pages where the information may be found, where appropriate, or write

More information

Chapter 4 - Preparation of Stormwater Site Plans

Chapter 4 - Preparation of Stormwater Site Plans Chapter 4 - Preparation of Stormwater Site Plans The Stormwater Site Plan is the comprehensive report containing all of the technical information and analysis necessary for the City to evaluate a proposed

More information

Stormwater Operations and Maintenance Plan. STORMWATER OPERATIONS and MAINTENANCE PLAN

Stormwater Operations and Maintenance Plan. STORMWATER OPERATIONS and MAINTENANCE PLAN STORMWATER OPERATIONS and MAINTENANCE PLAN The following Open Space Residential Development (OSRD) Stormwater Operations and Maintenance plan has been completed in accordance with Federal, State and Local

More information

Drainage Analysis-Newgate/Phelps & Hatchett Hill Road Areas Rev. 0 Erosion & Sediment Control Measures

Drainage Analysis-Newgate/Phelps & Hatchett Hill Road Areas Rev. 0 Erosion & Sediment Control Measures Drainage Analysis-Newgate/Phelps & Hatchett Hill Road Areas Rev. 0 Erosion & Sediment Control Measures 4.0 EROSION & SEDIMENT CONTROL MEASURES After performing the analysis summarized above, Burns & McDonnell

More information

Urban Water Management and Soils (ESRM 311 & SEFS 507)

Urban Water Management and Soils (ESRM 311 & SEFS 507) Urban Water Management and Soils (ESRM 311 & SEFS 507) Cougar Mtn Regional Wildland Park & Lakemont Blvd, Bellevue WA Lecture Today Some Urban Water management terms Examples of water management in urban

More information

CHAPTER 102 REQUIREMENTS CRITCAL STAGES DURING CONSTRUCTION ACTIVITIES

CHAPTER 102 REQUIREMENTS CRITCAL STAGES DURING CONSTRUCTION ACTIVITIES CHAPTER 102 REQUIREMENTS CRITCAL STAGES DURING CONSTRUCTION ACTIVITIES TOPICS Steps Prior to construction Pre-Construction Meeting Defining the Critical Stages with the Contractor Brady s Run Lake Site

More information

Lesson 2: Stormwater Best Management Practices (BMPs)

Lesson 2: Stormwater Best Management Practices (BMPs) Lesson 2: Stormwater Best Management Practices (BMPs) Environmental Stewards Class Christopher C. Obropta, Ph.D., P.E. Extension Specialist in Water Resources 732-932-9800 ext. 6209 obropta@envsci.rutgers.edu

More information

Erosion Control for Home Builders in the. City of Jacksonville

Erosion Control for Home Builders in the. City of Jacksonville Erosion Control for Home Builders in the City of Jacksonville Eroding construction sites are a leading cause of water quality problems in Jacksonville. For every acre under construction, about a dump truck

More information

Zoning Ordinance Chapter 10

Zoning Ordinance Chapter 10 CHAPTER 10 - WASHES SECTION 10.0 GENERAL: A. The purpose of this Ordinance is to establish standards for development in or near Major and Minor Washes as defined in Appendix A Glossary of Terms and Definitions

More information

DEALING WITH STORM WATER MANAGEMENT

DEALING WITH STORM WATER MANAGEMENT December 2012 DEALING WITH STORM WATER MANAGEMENT This fact sheet provides information on the guiding principles of storm water management practices, explains the difference between structural and non-structural

More information

EROSION & SEDIMENT CONTROL

EROSION & SEDIMENT CONTROL EROSION & SEDIMENT CONTROL 1 EROSION & SEDIMENT CONTROL Effective Soil & Water Protection Whether you want to prevent soil erosion caused by rain, water and wind, or protect waterways from inevitable build

More information

4.5 City of Indianapolis Stormwater Green Infrastructure Guidance: Bioretention (rain gardens) Bioretention Fact Sheet Bioretention Technical Design

4.5 City of Indianapolis Stormwater Green Infrastructure Guidance: Bioretention (rain gardens) Bioretention Fact Sheet Bioretention Technical Design 4.5 City of Indianapolis Stormwater Green Infrastructure Guidance: Bioretention (rain gardens) Bioretention Fact Sheet Bioretention Technical Design Specification Bioretention O & M Manual Draft Green

More information

Preventing Storm Water Pollution: What We Can Do

Preventing Storm Water Pollution: What We Can Do Preventing Storm Water Pollution: What We Can Do ~Employee Training Series~ Land Disturbances PREPARED IN COOPERATION WITH THE Texas Commission on Environmental Quality AND U.S. ENVIRONMENTAL PROTECTION

More information

4. CONCEPT PLAN DEVELOPMENT

4. CONCEPT PLAN DEVELOPMENT 4. CONCEPT PLAN DEVELOPMENT Concept Plan Step 1: Identify Site Constraints and Opportunities Review the existing site to identify constraints and opportunities for GI Practices to meet the RRv. Constraints

More information

5/15/2013. Basin Area. Vegetation. Rainfall & Runoff. Soil Type. Topics. Factors Influencing Erosion. Factors Influencing Erosion

5/15/2013. Basin Area. Vegetation. Rainfall & Runoff. Soil Type. Topics. Factors Influencing Erosion. Factors Influencing Erosion Topics Erosion, TESC and Construction sequencing Procedures and timing Remedies for failing sites Curtis Hinman WSU Extension and Bio Systems Eng. Faculty Low Impact Development Specialist chinman@wsu.edu

More information

4. Contractor (and subcontractors if applicable) certification statement(s)

4. Contractor (and subcontractors if applicable) certification statement(s) CHEMUNG COUNTY STORMWATER COALITION STORMWATER POLLUTION PREVENTION PLAN (SWPPP) SUBMITTAL CHECKLIST GENERAL INFORMATION: 1. Owner/Operator name, legal address, phone number 2. Copy of signed Notice of

More information

WET PONDS INSPECTION & MAINTENANCE CHECKLIST

WET PONDS INSPECTION & MAINTENANCE CHECKLIST WET PONDS INSPECTION & MAINTENANCE CHECKLIST INTRODUCTION Once construction is completed, periodic site inspections are essential in order to monitor the effectiveness and to anticipate the maintenance

More information

2016 Annual Inspection Report

2016 Annual Inspection Report 2016 Annual Inspection Report for Compliance with the Coal Combustion Residuals Rule (40 CFR Part 257) Hayden Station 13125 U.S. Highway 40 Hayden, Colorado 81638 January 18, 2017 Table of Contents Certification...

More information

Methods, approaches, and procedures to minimize active agricultural land impacts during pipeline construction, surface restoration, and pipeline

Methods, approaches, and procedures to minimize active agricultural land impacts during pipeline construction, surface restoration, and pipeline Agricultural Impact Minimization Plan Methods, approaches, and procedures to minimize active agricultural land impacts during pipeline construction, surface restoration, and pipeline operation. PennEast

More information

City of Waco Stormwater Management Regulations

City of Waco Stormwater Management Regulations 1.0 Applicability: City of Waco Stormwater Management Regulations These regulations apply to all development within the limits of the City of Waco as well as to any subdivisions within the extra territorial

More information

PROPOSED DRAINAGE PATTERNS

PROPOSED DRAINAGE PATTERNS 1121 1118.50 Basin Floor 1120 1119 0 N 100 200 PROPOSED DRAINAGE PATTERNS Deroiser Drive Riverwood Drive County 260 0 100 200 Project Name: Riverwood Drive LITTLE FALLS TOWNHOMES Project Location: LITTLE

More information

2.1.4 Roof Downspout Rain Gardens

2.1.4 Roof Downspout Rain Gardens 2008 SWMM, 2010 Revision City of Tacoma 2.1.4 Roof Downspout Rain Gardens Purpose and Definition Bioretention areas are shallow stormwater retention facilities designed to mimic forested systems by controlling

More information

Non-Metallic Mining Reclamation Checklist

Non-Metallic Mining Reclamation Checklist Eau Claire County DEPARTMENT OF PLANNING AND DEVELOPMENT Eau Claire County Courthouse, Rm. 1510 721 Oxford Avenue Eau Claire, Wisconsin 54703-5481 (715) 839-4741 f Housing & Community Development 839-6240

More information

Town of Essex Small Site Erosion Control Guide

Town of Essex Small Site Erosion Control Guide Town of Essex Small Site Erosion Control Guide Why do we need to protect against erosion? Water Quality: Erosion and the transport of sediment and pollutants impacts the water quality of nearby streams

More information

TO BE FILLED OUT BY APPLICANT

TO BE FILLED OUT BY APPLICANT CITY OF BAINBRIDGE ISLAND CLEARING PERMIT APPLICATION FORM MUST BE COMPLETED IN INK, PREFERABLY BLUE. PENCIL WILL NOT BE ACCEPTED. DATE STAMP FOR CITY USE ONLY PROJECT NAME: TAX ASSESSOR S NUMBER(S): TO

More information

STORMWATER MANAGEMENT CODES ANALYSIS RICHLAND COUNTY, SC SITE PLANNING ROUNDTABLE

STORMWATER MANAGEMENT CODES ANALYSIS RICHLAND COUNTY, SC SITE PLANNING ROUNDTABLE STORMWATER MANAGEMENT CODES ANALYSIS RICHLAND COUNTY, SC SITE PLANNING ROUNDTABLE Codes analyses for each subcommittee were completed to assist participants of the Richland County Site Planning Roundtable.

More information

Grass Buffer T-1. Description. Site Selection. Designing for Maintenance

Grass Buffer T-1. Description. Site Selection. Designing for Maintenance Description Grass buffers are densely vegetated strips of grass designed to accept sheet flow from upgradient development. Properly designed grass buffers play a key role in LID, enabling infiltration

More information

STORMWATER PERMIT SUBMITTAL REQUIREMENTS

STORMWATER PERMIT SUBMITTAL REQUIREMENTS STORMWATER PERMIT SUBMITTAL REQUIREMENTS Most development within the City of Bellingham that involves disruption of soils, or construction of buildings, streets, parking lots, etc. requires a Stormwater

More information

EROSION PREVENTION BMP SUGGESTED USES MATRIX

EROSION PREVENTION BMP SUGGESTED USES MATRIX EROSION PREVENTION SUGGESTED USES MATRIX Processed Based Tools Software Aids Slope Waterway Surface Concentrated Flows Large Flat Stock Pile Borrow Adjacent Property Impacts Erosion Prevention Measures

More information

APPENDIX C: STORMWATER CONTROL PLAN

APPENDIX C: STORMWATER CONTROL PLAN APPENDIX C: STORMWATER CONTROL PLAN STORM WATER MANAGEMENT PLAN FOR PLEASANT HILL, CALIFORNIA Prepared for Compliance with the Clean Water Program (C.3) and the San Francisco Bay Regional Water Quality

More information

North Branch of Cypress Creek Ecological Restoration: A Comprehensive Approach to Stream Restoration

North Branch of Cypress Creek Ecological Restoration: A Comprehensive Approach to Stream Restoration North Branch of Cypress Creek Ecological Restoration: A Comprehensive Approach to Stream Restoration Rocky Powell Clear Creeks Consulting, LLC Keith D. Tate, P.E. BayLand Consultants & Designers, Inc.

More information

December 13, 2005 Meeting Status of NPDES Post Fire BMPs

December 13, 2005 Meeting Status of NPDES Post Fire BMPs December 13, 2005 Meeting Status of NPDES Post Fire BMPs Agenda Overview of Current Operations At SSFL Impacts of Fire At SSFL Rebuilding & Improvement of BMPs Future Activities Site Tour Close-out 1 Santa

More information

The use of low head weirs to. perennial streams with their floodplains:

The use of low head weirs to. perennial streams with their floodplains: The use of low head weirs to reconnect severely entrenched perennial streams with their floodplains: An Anne Arundel County TMDL Watershed Implementation Plan Strategy presented by Hala Flores, P.E Mid

More information

Figure 1. Bioswale along roadside. Photo courtesy of CalTrans. Figure 2. Diagram of typical bioswale (adapted from UDFCD 1999)

Figure 1. Bioswale along roadside. Photo courtesy of CalTrans. Figure 2. Diagram of typical bioswale (adapted from UDFCD 1999) Design Manual: Biological Filtration Canal (Bioswale) Dayna Yocum, Bren School of Environmental Science and Management, University of California, Santa Barbara Figure 1. Bioswale along roadside. Photo

More information

SECTION 6. Routine Maintenance Activity Details

SECTION 6. Routine Maintenance Activity Details SECTION 6 Routine Maintenance Activity Details 80. DEBRIS REMOVAL When Deadfall, and other objects, such as shopping carts, tires, appliances, and mattresses have accumulated in the drain. Why To prevent

More information

Appendices: Glossary. General Terms. Specific Terms. Low Impact Development Approaches Handbook

Appendices: Glossary. General Terms. Specific Terms. Low Impact Development Approaches Handbook 67 67 General Terms Specific Terms 66 Low Impact Development Approaches Handbook The vocabulary of low impact development is evolving, and many terms are used interchangeably and to describe the same or

More information

BIORETENTION FACILITY

BIORETENTION FACILITY ILLINOIS URBAN MANUAL PRACTICE STANDARD BIORETENTION FACILITY (feet) CODE 800 Source: Jessica Cocroft, Winnebago Soil and Water Conservation District DEFINITION Facility that utilizes a soil media, mulch,

More information

SITE PLAN REVIEW ITEMS - REFERENCE CHECKLIST

SITE PLAN REVIEW ITEMS - REFERENCE CHECKLIST City of Seminole 9199 113 th Street N. Seminole, FL 33772 Ph: (727) 392-1966 Fx: (727) 319-6583 SITE PLAN REVIEW ITEMS - REFERENCE CHECKLIST Note: This checklist is designed to aid designers in the review

More information