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HomeMy WebLinkAboutCHI ZETA SORORITY HOUSE, PARKING LOT ADDITION - BASIC DEVELOPMENT REVIEW - BDR160002 - REPORTS - EROSION CONTROL LETTER/REPORTEROSION CONTROL REPORT FOR THE PARKING LOT AT 1112 BIRCH STREET FORT COLLINS, COLORADO FOR CHI ZETA CORPORATION PREPARED BY: CDS ENGINEERING CORPORATION LOVELAND, COLORADO PROJECT NUMBER 15-7510 February 16, 2016 TABLE OF CONTENTS TABLE OF CONTENTS Page NARRATIVE SITE DESCRIPTION Project Description 1 Project Location 1 Site Description and Runoff Coefficients 2 Non-Storm Water Pollutant Sources 2 PROJECT CONSTRUCTION PHASING 2 BEST MANAGEMENT PRACTICES FOR STORM WATER POLLUTION PREVENTION Narrative Description 3 Structural BMPs 3 Non-Structural BMPs 6 MATERIALS HANDLING AND SPILL PREVENTION 7 FINAL STABILIZATION AND LONG-TERM STORM WATER QUALITY 7 MAJOR STORM EVENTS 8 INSPECTION AND MAINTENANCE PROCEDURES 8 EXHIBIT A: VICINITY MAP EROSION AND SEDIMENT CONTROL ESCROW/SECURITY CALCULATION FOR THE CITY OF FORT COLLINS CONSTRUCTION DETAILS Wattle Installation Silt Fence Vehicle Tracking Control Pad Concrete Washout Area MATERIALS HANDLING AND WASTE MANAGEMENT GUIDELINES MAP POCKET Sedimentation and Erosion Control Plan NARRATIVE SITE DESCRIPTION Project Description The improvements for 1112 Birch Street Parking Lot include the construction of a permeable interlocking concrete paver (PICP) parking lot. The underdrain system carries water from the parking lot around the north and east boundary to the North gutter of Birch Street. The Administrator of the Sedimentation and Erosion Control Design for this project shall be: Chi Zeta Corporation Contact Person: Jan Lindeberg Contact Phone: 970-227-9099 PO Box 803 Fort Collins, CO 80522 Project Location The 1112 Birch Street Parking Lot is a proposed improvement located at an existing Sorority House on Lot 6, Johnson Addition. The property is located in the northeast quarter of Section 15, Township 7 North, Range 69 West of the Sixth Principal Meridian in the City of Fort Collins, Colorado. More specifically, the site lies on the north side of Birch Street, approximately 550 feet west of Shields Street. Medium Density Mixed Use lots lie to the south and east of the site. The lot to the east is currently vacant. Low Density Residential lots lie to the north and west of the property. Please refer to Exhibit A for a vicinity map that locates the property. The City of Fort Collins Master Drainage Plan has been referenced to identify the prepared stormwater drainage design for the major basin in which the project site lies. The property lies within the Old Town Basin, in which storm water is directed through the city storm sewer system that outfalls to the Poudre River. The City of Fort Collins has restricted stormwater release to consider water quality and historic runoff rates. Minor storms are released at a controlled rate in order to filter sedimentation and pollution from the runoff before it is released from the site. Stormwater from major events must be released at 2-year historic runoff rates. The area of the Old Town Basin which contains this project site does not contain a storm sewer system. Stormwater is released to the surface and into the street gutter system. Eventually, the water drains to streets that contain storm sewers that outfall to the Poudre River, which lies about one and one half miles northwest of the project site. 1 Site Description and Runoff Coefficients In the existing condition, the 1.18-acre project site contains a sorority residence, asphalt parking lot on the east side, and a bicycle pavilion near the parking lot. Landscaping that consists of grass, shrubs, mulch, rock and trees and makes up 59% of the ground cover. The land slopes to the south and east at slopes averaging 2%. The 100-year runoff coefficient before construction is about 0.49. The runoff coefficient after construction is an average 0.60 during a 100-year storm event. In the developed condition, the site will include all existing features as well as the new improvements. The improvements for 1112 Birch Street Parking Lot include the construction of a permeable interlocking concrete paver (PICP) parking lot, a sidewalk between the parking lot and existing building, a drainage system of piping and trickle channels to drain the stormwater, and perimeter landscaping around the parking lot. The underdrain system carries water from the parking lot around the north and east boundary to the North gutter of Birch Street. The landscaping and grass makes up about 33% of the ground cover in the developed condition. The grass cover makes up approximately 82% of the landscaped area. The classified soil on this site is Nunn Clay Loam, 1 to 3 percent slopes (Map Unit 74), which is in the hydrologic group, C, which would indicate a soil with a moderate runoff potential. Nunn Clay Loam is characterized by a slow permeability rate and slight wind erodibility. A soil investigation for this project has been completed, which confirms the presence of a clay overlying a silty sand within the soil bore depth of 12 feet. Groundwater was not encountered within the test bore. Non-Storm Water Pollutant Sources Information regarding the construction site boundaries, areas of soil disturbance, and erosion control can be found in the Sedimentation and Erosion Control Plan located in the plan pocket in the back of this report. A copy of the construction set shall be kept on site at all times. The contractor shall use this set to document modifications to the erosion and sediment control procedures. PROJECT CONSTRUCTION PHASING The proposed sequence of major activities for each phase of construction is as follows: Phase One: Earthwork Stage One: Clearing and grubbing, then stripping and stockpiling of topsoil. 2 Stage Two: Site Grading. Phase Two: Infrastructure for Drainage Away From Parking Lot Stage One: Installation of six-inch solid PVC pipe, two-foot wide concrete trickle channel and sidewalk chase Phase Three: PICP Parking Lot Construction Stage One: Construction of sidewalk and vertical curb around perimeter of parking lot Stage Two: Landscaping around perimeter around of parking lot Stage Three: PICP parking lot construction. BEST MANAGEMENT PRACTICES FOR STORM WATER POLLUTION PREVENTION Narrative Description The following structural Best Management Practices (BMPs) will be adopted to reduce erosion and sedimentation: silt fence, wattle protection, concrete wash out areas, and vehicle tracking control. Several non-structural BMPs will be implemented to reduce erosion and sedimentation, such as: landscaping, seeding and mulching, and ground roughening. Significant materials that may impact storm water include fuel tanks, concrete and grout, sewage from portable toilets, spent oils, hydraulic fluids, and other petroleum fluids, trash generated by construction workers. If additional BMPs are deemed necessary during the construction of this project, the contractor is required to identify those erosion and sediment control features on the construction set and provide a description in the logbook as to why the feature was added. Structural BMPs During Phase One, Stage One, the following structural Best Management Practices (BMPs) will be adopted to reduce erosion and sedimentation: 1. Silt Fence a. Silt fence will be placed on the northeast and east perimeter of the site to mitigate erosion onto downstream properties. Additional silt fence will be installed along the southeast perimeter of the proposed parking lot to mitigate sedimentation into Birch Street area. The exact locations of silt 3 fence placement can be found on Sedimentation and Erosion Control Plan, located in this report’s map pocket. It is important to note that silt fence shall not be installed within drainage ways. The silt fence should be installed per the detail provided in the appendix and shall not be removed until vegetation is established. 2. Vehicle Tracking Control Pads a. A vehicle tracking control pad will be placed in the southwest corner of the site to reduce sedimentation on the public roadways and the common lot access to the north of the building. Due to the proximity of the pad to the street and the limited dimensions in the location, the vehicle tracking control pad shall be a manufactured mud mat. The dimensions shall be 15 feet long and 8 feet wide. A construction detail is provided in the appendix of this report. The location of the pad is indicated on the Site Plan in the map pocket. 3. Curb Inlet Wattle Protection a. Wattles will be placed at the nearest downstream existing off-site inlet. This rock wattle protection will prevent sedimentation from being carried into the city storm sewer system and receiving waters. The wattle protection should be installed per the detail provided in the appendix and shall remain in place until the site is completely stabilized. 4. Curbside Checkdams a. Curbside checkdams will be placed within the Birch Street north gutter at the downstream sides of the east and west driveway accesses. The checkdams consist of rock wattle protection that will prevent sedimentation from being carried into the city streets, storm sewer system and receiving waters. The wattle protection should be installed per the detail provided in the appendix and shall remain in place until the site is completely stabilized. During Phase One, Stage Two, the following structural practices will be implemented and will remain in place until construction activity is completed: 1. Trickle Channel Wattle Protection a. Wattle protection will be placed every 50 feet within the trickle channel in the southeast corner of the site. These locations are identified in the Site Plan. The wattles shall be placed in the area 4 that is graded for the trickle channel and then positioned back on to the concrete channel once it is placed. The wattle protection should be installed per the detail provided in the appendix and shall remain in place until the site is completely stabilized. During Phase Three, Stage One, the following structural practices will be implemented and will remain in place until construction activity is completed: 1. Concrete Washout Areas: a. A concrete washout area will be placed within the north side of the site in order to provide a proper area for washing concrete trucks without allowing concrete to contaminate storm water runoff. The location of the concrete wash out area is indicated on the Site Map. This area shall remain in place until all concrete construction activities are completed. Concrete shall be collected and disposed of off-site. A construction detail for the concrete wash out area is provided in the appendix of this report. 2. Trickle Channel Wattle Protection 5. Once the concrete trickle channel is installed on the east side of the site, the wattle protection that was placed during grading shall be repositioned at a 50-foot interval on top of the concrete. These locations are identified in the Site Plan. If the wattles are damaged, then they shall be replaced with new ones. The wattle protection should be installed per the detail provided in the appendix and shall remain in place until the site is completely stabilized. 3. Pervious Surface Wattle Dike Protection b. Wattles will be placed along the north perimeter of the existing asphalt parking lot located on the east side of the property. These wattles will prevent sedimentation in the parking lot and into Birch Street by way of vehicle tracking and surface drainage. The wattle dike protection should be installed per the detail provided in the appendix and shall remain in place until the site is completely stabilized. During Phase Three, Stage One, all BMPs from previous stages shall remain in place. The following additional structural practices will be implemented and will remain in place until construction activity is completed: 5 1. Pervious Surface Wattle Dike Protection a. Wattle protection shall be placed along the north and west curb perimeter of the proposed parking lot to keep debris from entering the parking area. The exact location is shown on the Sedimentation and Erosion Control Plan in the back pocket. The wattle dike protection should be installed per the detail provided in the appendix and shall remain in place until the site is completely stabilized. During Phase Three, Stage Two, landscaping shall be completed prior to installation of the pervious pavement system to reduce overloading the system with landscape debris and soil. No additional BMPs are planned for this stage. However, sedimentation and erosion control conditions should be monitored and additional measures taken if it is determined that control is needed. During Phase Three, Stage Three, the BMPs placed during Phase Three, Stage One shall remain and be maintained in good condition. If wattles are damaged, they shall be replaced immediately. It is critical that sedimentation and pollutants are not allowed to enter the PICP area, as these materials will clog the system and reduce the effectiveness of the permeable paver system. Non-Structural BMPS Several non-structural BMPs will be implemented during all stages of construction, in order to reduce erosion and sedimentation. 1. Vegetative Buffer Strips a. Existing vegetation surrounding the construction area will also aid in the reduction of sedimentation leaving the site. Excess sedimentation in these buffer areas, over and above what normally occurs in the existing condition, should be removed at each occurrence. 2. Ground Roughening a. All disturbed ground and stockpiles will be roughened to reduce runoff and sedimentation. 3. Limitation of Construction Accesses a. The construction accesses will be minimized to one area to reduce tracking of soils off-site. Two accesses may be provided, if the contractor deems this necessary, provided that the contractor records 6 all new locations on the Storm Water Management Plan and Site Plan that is kept on the site. The condition of the street and driveways outside of this property should be monitored daily and any sedimentation on the road surface should be swept and removed within seven days of occurrence. 4. Temporary Seeding a. If any disturbed areas are left exposed for more than 30 days, temporary seeding shall be completed to reduce erosion. The recommended seed mix is provided in the appendix of this report. The following non-structural BMP will be implemented after construction of all phases has been completed. 1. Landscaping a. Landscaping of all disturbed areas will commence after grading and construction of the parking lot and stormwater drainage system is completed and distribution of topsoil over all areas from which it was removed. The purpose of this procedure is to stabilize the soil after construction, to reduce erosion of the ground and sedimentation into the waterway. Trees, shrubs and mulch will be placed around the north and west perimeter of the proposed parking lot and also along the east boundary of the property. The growth of vegetation should be monitored and measures such as reseeding and watering should be taken until the vegetation is established. POTENTIAL POLLUTANT SOURCES Several pollutant sources can be identified on the project site that require various control methods to mitigate transfer of those pollutants to downstream water sources. The following list discusses several possible pollutant sources and identifies which BMPs will be implemented to reduce pollution. 1. Disturbed and Stored Soils a. Silt fence, curb inlet wattle protection, curbside checkdams, trickle channel wattle protection, pervious surface wattle dike protection, ground roughening, vegetative buffer strips, and temporary seeding will be used to mitigate sedimentation of disturbed and stored soils. 7 2. Vehicle Tracking of Sediment a. A vehicle tracking control pad, sweeping the streets, and limitation of construction accesses shall be implemented to reduce the tracking of soils on to the adjacent public streets and private properties. 3. Management of Contaminated Soils a. It is not anticipated that contaminated soils are located on the site. However, if contaminated soils are discovered, the contractor shall follow proper procedures to contain and remove those soils. 4. Loading and Unloading Operations a. A staging area is identified on the site map for most loading unloading operations. If the staging area is not logical place to load or unload some materials, additional areas shall be identified by the contractor and noted in the maintenance log. The contractor shall follow proper procedures to reduce sedimentation and pollutant transfer. 5. Outdoor Storage Activities a. Several construction materials such as pipe, bedding materials, fertilizer, etc. will be stored on site during construction. The contractor shall identify the methods used to contain each item to avoid polluting downstream areas. 6. Equipment Maintenance and Fueling a. All equipment maintenance and fueling shall be completed in a manner that contains spilled fluids and other materials to avoid contamination of the on-site and off-site areas. The spills and other waste from these operations shall be disposed of off of the site. The methods for this shall follow the “Material and Waste Management” procedures presented in the appendix of this report. 7. Significant Particulate Generating a. Grading and pipe installation activities may generate dust pollution. Ground roughening to reduce dust shall be used if necessary. Other methods may be selected by the contractor and recorded in the maintenance log. 8. Routine Maintenance Activities a. Inspection and maintenance procedures are discussed in a later section of this report. Inspection of all sedimentation, erosion control and pollutant mitigation method shall occur daily. Maintenance and 8 repair of each method shall be completed immediately upon discovery of damage. 9. On Site Waste Management a. All construction waste shall be contained and removed from the site in accordance with the guidelines presented in the “Materials Handling and Waste Management” section presented in the appendix of this report. The contractor is responsible for implementing additional proper procedures that may not be addressed in the above-mentioned section. 10. Concrete Washing a. All concrete cleaned from construction equipment shall be contained in the concrete washout area located on the site map. 11. Dedicated Asphalt or Concrete Batch Plant a. No on-site asphalt of concrete batch plants are planned for this project. 12. Non-Industrial Water Sources (Worker Trash and Portable Toilets) a. On site trash receptacles and portable toilets shall be maintained and waste from these sources shall be properly disposed of off site. Waste management for these facilities is addressed in the “Materials Handling and Waste Management” section in the appendix of this report. 13. Other Potential Spills a. The contractor is responsible for identifying other construction procedures that can potentially cause spills or contamination and implementing procedures to mitigate pollution, sedimentation and/or erosion control. These procedures and the solutions shall be addressed in the maintenance log. MATERIALS HANDLING AND SPILL PREVENTION Several sources may impact storm water quality on this site. In this paragraph, some examples of sources are discussed, but are not meant to be an exhaustive list. The contractor should identify all pollution sources and use measures to prevent or mitigate any resulting contamination of runoff, erosion and sedimentation. Concrete and grout, washed out of concrete trucks, can contaminate storm water runoff. Concrete washout areas will be provided on site to avoid contamination. No asphalt or concrete 9 batch plants will be placed on the property. Fuel tanks and trash bins on the site will be self-contained to mitigate pollution of storm water runoff. If pollutant spills occur from fuel tanks and trash bins, the receptacles that hold the pollutants must be repaired or replaced immediately and all contaminated soils and trash shall be contained and disposed of off-site. Spent oils, hydraulic fluids, and other petroleum fluids will be retained in containers for disposal off site. Portable toilets will be placed within the staging area to avoid contamination of waterways by sewage. These toilets will be placed on dirt and secured to avoid falling over. If leakage is detected, the toilet structure will be fixed or maintained and all contaminated soil will be collected and disposed of into the trash receptacle. The location of the mobile BMPs discussed in this paragraph will be marked on the construction set by on-site personnel at the time of construction. Large pollutant spills over five gallons must be cleaned up per the Colorado Department of Transportation guidelines. These guidelines are presented in the appendix. FINAL STABILIZATION AND LONG-TERM STORM WATER QUALITY All erosion control measures shall remain in place until the site is fully stabilized. Final stabilization of disturbed areas not covered by asphalt, concrete or buildings will be acquired by revegetation or riprap. The stabilized seeded revegetation is approximately 60% of the original vegetative cover density of this property. MAJOR STORM EVENTS In the event of a major storm event that causes surface erosion, a sediment/erosion control inspection will be completed immediately. Clean up of the site will be required immediately after of the initial occurrence. If any erosion control and sedimentation features have been destroyed, these controls must be replaced or repaired immediately after of the occurrence. Any sedimentation must be removed and replaced to its original source immediately. INSPECTION AND MAINTENANCE PROCEDURES Inspection of the storm water management system will occur every day and after every storm event. An inspection report shall be written every fourteen days and after every storm event. Erosion control structures that are damaged will be removed and replaced or repaired immediately. 10 The contractor shall keep a maintenance log of repairs and changes to all erosion control measures. This log shall be kept on site at all times and updated as repairs and/or changes are made. The log shall contain an explanation of why the damage occurred and what repairs and additional methods are being implemented to avoid damage of the erosion/sediment control feature in the future. This Sedimentation and Erosion Control Plan is intended to be an active document and may be adapted to fit changing circumstances or modify erosion control methods. Each modification must be documented on the construction set and in the maintenance log. 11 12 Project: Disturbed Acres: 0.50 EROSION CONTROL BMPs Units Estimated Quantity Unit Price Total Price L.F. 1050 $2.50 $2,625.00 L.F. 320 $2.50 $800.00 EA 1 $100.00 $100.00 EA 2 $75.00 $150.00 EA 2 $100.00 $200.00 EA 1 $550.00 $550.00 EA 1 $400.00 $400.00 Sub-Total: $4,825.00 1.5 x Sub-Total: $7,237.50 Amount of security: $7,237.50 Total Acres x Price/acre: $1,100.00 $2,200.00 Sub-Total: $1,100.00 1.5 x Sub-Total: $1,650.00 Amount to Re-seed: $1,650.00 Minimum escrow amount: $3,000.00 Erosion Control Escrow: $7,237.50 Erosion and Sediment Control Escrow/Security Calculation for The City of Fort Collins BMP Amount Silt Fence (SF) Concrete Washout (CW) Vehicle Tracking Control (VTC)-Nilex Mud Mat Reseeding Amount Curbside Checkdams (W4) Trickle Channel Wattle Protection (W5) Miniumum Escrow Amount PARKING LOT AT 1112 BIRCH STREET Unit Price of Seeding per acre: “The amount of the security must be based on one and one-half times the estimate of the cost to install the approved measures, or one and one-half times the cost to re-vegetate the disturbed land to dry land grasses based upon unit cost determined by the City's Annual Revegetation and Stabilization Bid, whichever is greater. In no instance, will the amount of security be less than one thousand five hundred dollars ($1,500) for residential development or three thousand dollars ($3,000) for commercial development” Curb Inlet Wattle Protection (W3) Pervious Surface Wattle Dike Protection (W1) (add all other BMPs for the site in this list) Final Escrow Amount 2/16/2016 2:04 PM X:\Land Development\7510-CHI OMEGA PARKING\DRAINAGE\7510-EROSION CONTROL SECURITY CALCULCATION SHEET_02-16-16 13 APPENDIX 14 15 CONSTRUCTION DETAILS 16 17 18 Mud Mats can be used for construction site access, agriculture, golf courses, parks, and other soft or sensitive ground condition areas where vehicle access is required – just unroll and drive on any muddy or swampy ground without getting stuck, rutting or tracking mud off-site. Mud Mats consist of pocketed, double-wall, high-strength fabric with high tensile reinforcing ribs confined within each sleeve which allows for easy deployment and structural stability. Ground pressure from vehicle tires is reduced up to 40 times, causing minimal ground disturbance. Mats are available in 8’ x 15’ sections and weigh approximately 75 pounds, making them portable and easy for two people to install. Set-up and removal are as easy as rolling out and rolling up the mats. Larger areas are not a problem, as the mats are designed to connect to one another, further increasing the structural stability. Advantages: • Lightweight • Quick to Deploy • Easy to Wash • Reusable Mud Mats PRODUCT OVERVIEW EROSION & SEDIMENT CONTROL 19 nilex.com EDMONTON T: 780.463.9535 TF: 1.800.667.4811 CALGARY T: 403.543.5454 TF: 1.888.543.5454 TORONTO T: 416.640.6002 TF: 1.877.640.6002 VANCOUVER T: 604.420.6433 TF: 1.800.663.0478 VERNON T: 250.260.3300 TF: 1.800.663.0478 ABBOTSFORD T: 604.420.6433 TF: 1.800.663.0478 SASKATOON T: 306.956.0088 TF: 1.888.543.5454 DENVER T: 303.766.2000 Rev: 08/2010 Mud Mats Property Test Unit Value Mechanical Grab Tensile Strength ASTM-D4632 N (lbf) 3570 (802.6) Apparent Breaking Elongation ASTM-D4632 % 25 / 18 Puncture Resistance ASTM-D4833 N (lbf) 1665 (374.3) Mullen Burst ASTM-D3786 kPa (psi) 3150 (456.88) Trapezoidal Tearing Strength ASTM-D4533 N (lbf) 2700 (607) Appararent Opening Size ASTM-D4751 mm (US Sieve) 0.212 (70) Constant Head Permitivity ASTM-D4491 l/min/m2 (g/min/ft2) 821 21 MATERIALS HANDLING AND WASTE MANAGEMENT GUIDELINES 22 Erosion Control Supervisor Training Program MATERIALS HANDUNG AND WASTE MANAGEMENT COOT has divided this section into the following components: • Materials Handling and Spiff Prevention (MH) • Waste Management (WM) • General Pollution Prevention (GP} Introduction to Matel'ials Handling and Waste Management Many products used during construction such as fuefs, lubricants, oils, paints and coatings and herbicides and pesticides are classified as hazardous materials. In addition, once these materials are no longer useable, they become a regulated waste. These materials present a potential serious threat to waterways because even very smaff quantities can have dramatic impacts on aquatic ecosystems. Practices must be implemented on the project to ensure these materials are properly handled and stored to prevent contamination of stormwater runoff. Many of the practices required are mandated by other regulations developed by EPA, OSHA, DOT, COPHE, and the local fire department. Check with your safety officer and environmental manager to determine what specific practices are required. @ 2006 Altitude Training Associates Note the proximity of the waste pile to flowing water Predict where the water will now and plan storage pHes accordngly. Student Manual 97 ·' ., '',: ' " :.: I • j' <. ~: ;. 23 Erosion Control Supet"Visor Training Program Chemieal Handlin~ Storage, and SpHI Clean Up Safe Work Practices fat' Chemical Handling - Personal Safety and Spill Prevention • Consult MSDS or other infonnation about the materials to determine proper handling and safety procedures. AD personnel handling hazardous chemicals must be adequately trained. • FoHow an safety procedures and wear proper personal protective equipment. Ensure emergency phone numbers are readily available. • Secondary containment is required for bulk storage containers like fuel tanks. • Conduct regular inspections. Chemical storage areas should be part of aU stonnwater inspections and safety inspections. • No eating~ drinking smoking or chewing tobacco when handling chemicats. • Wash hands thoroughly after handling. • Complete adequate decontamination procedures for equipment and personnel. • Do not spread materials in any fashion. • Do .QQ! handle containers of unknown conten1s, containers that are bulging. bubbling, hissing or have crystallized residue. • Do not touch your face, eyes or other sensitive areas. • Report all spills, releases, injuries or dangerous situations immediately. • Ensure proper spill clean up equipment is easily accessible. • Do not allow vehicfe traffte to travel through spiff areas. • A TrEND ALL TRANSFERS OF CHEMICALS TO ENSURE PROPER PROCEDURES ARE FOLLOWED BY THE DRIVER AND THERE ARE NO SPILLS OR LEAKS HAPPEN AND CONTAINERS AR NOT DAMAGED. LOTS OF CHEMICAL SPILLS HAPPeNED DURING TRANSFER. Container Handling • Store containers in a secure, protected location out of the way of busy areas and ensure adequate ventilation if stored in a building. Store all containers upright and do not stack. Do not store chemical materials near waterways. Provide some kind of containment in case of a sptll. For example, containers can be stored on spill paHets, inside approved lockers equipped with a containment basin, placed in a lined bermed area. • Ensure packages and containers are intact. Check for leaks, cracks, tears, splits, loose caps and integrity of container. • Repackage into recovery drum or bucket if necessary. • Record all label and container information. • Do not handle containers of unknown contents or origin. • Do not tip, drop or spill contents. © 2006 Altitude Training Associates Student Manual 98 I • c • • • • 4 • • • • .• • . • .• . • • .. " - -.. , " .• . .... . . 24 Erosion Control Supervisor Training Program • Segregate products as required. • Document all containers and debris packed in recovery drums. Disposable personal protective equipment should be packed with packaged waste for proper disposaL • For waste material, make arrangements for proper disposal. Store materials for the least amount of time as possible. Spill Clean Up Chemical spills present safety hazards to site personnel and may contaminate waterways. If you have not been trained on chemical spill clean up and discover a leaking drum or other spilt: • Contact the responsible person immediately regardless of size or severity. Some spills may require response from emergency responders for hazardous materials • Stay a safe distance from the spill, upw!nd. • • •· Keep Place peopfe diking material out of the dGWnstream area and of if necessary, the spill to prevent place cones spreading. or . barricade Act in a defensive fashion .oniy. ONLY DO THIS fF IT IS SAFE TO DO SO. • Wait for responsible party to arrive, maintaining a safe distance. • Seek prompt medical attention for any injuries no matter how minor they may seem. After initial discovery, the proper personnel need to complete the spill clean up as soon as possible. • Contain the release with diking materials and absorb free liquids. • Place all contaminated debris into an over-pack or recovery drum. This will include the absorbant material from the spill area, other contaminated soil and debris, personal protective equipment used during clean up. label the containers as to the contents and other required hazard warnings. • Seek prompt medical attention for any injuries no matter how minor they may seem. • Atl hazardous wastes must be packaged, stored and removed according to federal and state law. C 2006 AltitUde Training Associates Student Manual 99 .. I ,. ~I 'J i: 25 Erosion Control Supervfsor Training Program Concrete Waste BMPs are required to prevent the release of concrete waste into stormwater. Concrete waste may be generated from: • Demolition activities involving concrete materials • Concrete truck wash out • Concrete saw cutting • Concrete batching or mixing Store any concrete waste sufficient distance from drainage ways. storm sewer inlets, highway right~-way. or receMng waters. Concrete waste must be placed in a concrete washout facility. CDOT WM1 Concrete Waste Management Figure WMl.l Concrete Washout· Plan from COOT Guide I~ .... I PLAN VIEW NTS 0 2006 A'titude Training Associates Student Manual 100 ' j 4 • 4 4 4 c 4 • 4 4 4 • • • • • t t t • 26 Erosion Control Supervisor Training Program Figure WM1.2 Concrete Washout Plan from COOT Guide CROSS-SECTION A-A Requirements for concrete wash facilities • Constructed of suff'JCient size to contain aft the concrete waste generated including liquids. • Located away frorrt receiving waters but easily accessible. • Comprised of an excavation with a protected perimeter. • Excavated such that groundwater is not impacted. • Provided with signage informing site personnel of it's location. • Maintained in good condition. Remove hardened concrete as necessary. • Clean out should be conducted when it's approximately three quarters full or sooner. • Inspections must be conducted regurarty. For concrete saw cutting, utilize equipment that does not allow the discharge of the water or direct the water to a wash facifrty. For dry cutting, come behind the saw cutting and scoop up the debris and dispose of it in the concrete waste facility. A sweeper will remove any remaining dust and debris. Adding ffocculants or other additives to the wash water is prOhibited. Hardened concrete must be disposed of properly. C 2006 Altitude Training Associates Student Manual 101 :i I I ! . l•. :1 I i !j 'i. :1' . I I u: . . !. . i ~ '~ : . I. 27 -- Erosion Control Supervisor Training Program Vehicle and Equipment Maintenance Designate locations for conducting equipment maintenance activities. Provide protection from leaking vehicle fluids such as drip pads and pans. Maintain containers for the storage of vehicle fluids as described above. Have fluids for recycling removed as soon as possible. Maintain spill clean up materials and clean up leaks and spills immediately. Do not anow leaking fluids to soak into soils or to migrate. Sanitary Services Practices to prevent the spill or leakage of sanitary and septic waste from contacting stormwater are required. In addition to 1he water quality concems. sanitary and septic waste presents a potential public health risk. Establish sanitary facilities away from drainage ways, inlets, receiving waters, high traffic areas and areas susceptible to flooding or high winds. Construction activities may encroach on the facilities so be sure they are protected from damage. Sanitary sewer system connections must comply with local health agency requirements including the removal of temporary facilities. In areas of high wind, be sure the facilities are properly secured. Clean up spills or leaks immediately. Be sure to wear the proper personal protective equipment during spill clean up. When in doubt, contact a proper spiU dean up company. Use licensed haulers for the waste and ensure it's proper disposal. Have transfers of the waste attended to ensure proper procedures are followed by the driver and no spiUs or reaks occur. Be sure to conduct regular inspections of sanitary facilities as part of the stonnwater management plan and during heavy winds. tO 2006 AltitUde Training Associates Student Manual 102 28 (20.16) Wide Width Tensile ASTM-D4595 kg/cm lbs/in 122.5 (685.7) Packaging Roll Weight Measured kg (lbs) 40 (90) Roll Width Measured m (ft) 2.44 (8) Roll Length Measured m (ft) 4.57 (15) Disclaimer: The information provided by Nilex is believed to be correct and is generally based on information supplied by the manufacturers of the product offered. Any recommendations made by Nilex concerning uses or applications of our products are also believed to be reliable; however, as Nilex has no control over design execution, and field conditions of the project which incorporate the product. Nilex disclaims all warranties, expressed or implied, including, without limitation, the warranties of merchantability and/or fitness for a particular purpose. 20