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The CSRA is proud to welcome Concrete Washout Systems as a Founding Platinum Skateholder Sponsor. Their commitment to CSR practices both environmentally and on a social level is a corporate priority to the company, ownership and their employees.


Concrete Washout Systems, Inc., is a private and closely held California corporation located in Elk Grove, CA. It was created to address the overwhelming need for safe, responsible and environmentally friendly alternative to the old worksite concrete washouts.

Concrete Washout Systems, Inc.’s primary product is its patented Concrete Washout Systems which controls, captures and contains all concrete washout wastewater and material.

cwsbinphoto.jpgConcrete Washout Systems is a safe, responsible and environmentally conscious alternative to the old worksite concrete washouts. We understand that in order for our product to be competitive in the concrete washout marketplace, we must be sensitive to the environmental needs of where we work, travel, live and play. Whether you’re driving down the expressway or experiencing the great outdoors, our product may have an impact on your everyday life. We have developed a cost effective and environmentally friendly alternative to concrete washout sites and we are striving to become the industry standard in the concrete washout removal and recycling industry.

Concrete itself, once hardened, is inert and harmless to the environment. However, we know that concrete or cementitious washout wastewater containing mortar, grout, plaster, stucco or cement is caustic and considered to be corrosive with a pH over 12. Concrete washout water has a toxicity level greater than ammonia and near the same pH level as pouring Drano into the storm drain. Washout of concrete equipment must be done with careful regard for its potential impact on the environment. The wastes from concrete washout can harm the environment if allowed to runoff from construction sites. As populations have grown and construction has expanded into new areas, building sites have become a significant environmental concern.

Concrete Washout Systems holds a strong commitment towards forming strategic partnerships and alliances and places a high value on mutually beneficial long-term relationships. Concrete Washout Systems values its customers, the importance of balancing construction with environmental impact concerns and is committed to customer satisfaction and long-term relationships. Concrete Washout Systems is totally committed to fulfilling our responsibility to protect the environment.


Construction sites have long been identified as a large contributor to urban runoff pollution if the proper pollution prevention practices are not regularly performed.  Materials washed into the storm drain have a direct impact on local waterways and habitat living in that environment.

The most common discharge into our storm drains from concrete construction is the residue and contaminants from washing down equipment such as concrete trucks, pumps, mixers, chutes, hand tools and wheelbarrows.  It also comes from other cementitious type products such as grout, mortar and stucco.  Concrete or cementitious washout wastewater is caustic and considered to be corrosive with a pH near 12, essentially the same as Liquid Drano®, Ammonia or other household cleaning detergents.  The primary ingredient in ready mixed concrete is Portland Cement, which consists of Portland Cement Clinker, Calcium Sulfate, Calcium and Magnesium Oxide, metals and trace elements of potassium and sodium sulfate compounds, chromium compounds and nickel compounds.

Due to this high potential for urban runoff pollution, the United States Environmental Protection Agency (US EPA) has stepped up their efforts to keep Storm Water Pollution Prevention Plans (SWPPP’s) compliant to the National Pollution Discharge Elimination Systems (NPDES). All of these mandated criteria are part of the US Clean Water Act and mandates the utilization of Best Management Practices (BMP’s) on construction sites. Potential discharges into the storm drain systems from concrete work has become a priority of the federal and state EPA, water quality control officials, regional and local inspectors as well as a strategic target of the advocacy and environmental groups.

Concrete Washout Systems, Inc. (CWS) has addressed this serious challenge in keeping regulatory agencies and advocacy groups satisfied while protecting and balancing the interests of the concrete and construction industry. CWS has developed a BMP that not only meets SWPPP guidelines, but also exceeds them. In doing this, CWS is making every effort to protect the concrete and building industries and minimize regulatory fines and civil liabilities.

This Best Available Technology (BAT), patented concrete washout system is a portable, self-contained and watertight roll-off bin that controls, captures and contains concrete washout material and runoff.  This state-of-the-art, concrete washout system includes several unique design features including, steel folding ramps to accommodate almost all concrete pump hoppers, a high-grade plastic interior lining to assist in extracting the washout material and a watertight bin and seal to eliminate any wastewater discharge.  The washout bin is capable of holding approximately 5.5 yards of material, which is equivalent to washing out approximately 38 concrete trucks and 2 concrete pumps.



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