A08 - CASQA Detail - WM-8.pdf
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- Solicitation number
- 36C78620B0015
About this file
This document provides best management practices for concrete waste management on construction projects. It describes procedures for conducting concrete washout onsite or offsite in a designated area. It applies to projects using concrete as a construction material or involving concrete demolition. The document recommends employee and subcontractor training, and describes the need to prevent concrete waste from raising pH levels in stormwater runoff outside of permitted ranges. It provides guidance on suitable applications and targeted constituents for concrete waste management techniques.
The related federal contract opportunity is a solicitation for expansion work at the Miramar National Cemetery in San Diego, California. The project involves construction of additional columbarium niches and in-ground cremains areas. The solicitation number is 36C78620B0015 and the project number is 892-036. The contracting agency is the Department of Veterans Affairs National Cemetery Administration.
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Text version
Concrete Waste Management WM-8
July 2012 California Stormwater BMP Handbook 1 of 7 Construction www.casqa.org
Description and Purpose Prevent the discharge of pollutants to stormwater from concrete waste by conducting washout onsite or offsite in a designated area, and by employee and subcontractor training.
The General Permit incorporates Numeric Action Levels (NAL) for pH (see Section 2 of this handbook to determine your project’s risk level and if you are subject to these requirements).
Many types of construction materials, including mortar, concrete, stucco, cement and block and their associated wastes have basic chemical properties that can raise pH levels outside of the permitted range. Additional care should be taken when managing these materials to prevent them from coming into contact with stormwater flows and raising pH to levels outside the accepted range.
Suitable Applications Concrete waste management procedures and practices are implemented on construction projects where:
Concrete is used as a construction material or where concrete dust and debris result from demolition activities.
Slurries containing portland cement concrete (PCC) are generated, such as from saw cutting, coring, grinding, grooving, and hydro-concrete demolition.
Concrete trucks and other concrete-coated equipment are washed onsite.
Categories
EC Erosion Control SE Sediment Control TC Tracking Control WE Wind Erosion Control
NS Non-Stormwater Management Control
WM Waste Management and Materials Pollution Control
Legend:
Primary Category
Secondary Category
Targeted Constituents
Sediment Nutrients Trash Metals Bacteria Oil and Grease Organics
Potential Alternatives
None
If User/Subscriber modifies this fact sheet in any way, the CASQA name/logo and footer below must be removed from each page and not appear on the modified version.
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