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Concrete Washout Management Guide

The document provides guidelines for managing concrete washout at construction sites with DEQ permits: (1) Concrete trucks and equipment must be washed off site or in designated washout areas only, and wash water must be contained. (2) Wash water must be directed into a pit or leak-proof container sized to prevent overflows, and must not contaminate groundwater. (3) Wash water and hardened concrete waste must be handled through disposal, reuse, or recycling and not discharged into storm drains, ditches or surface waters.

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Jorge Gutierrez
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161 views2 pages

Concrete Washout Management Guide

The document provides guidelines for managing concrete washout at construction sites with DEQ permits: (1) Concrete trucks and equipment must be washed off site or in designated washout areas only, and wash water must be contained. (2) Wash water must be directed into a pit or leak-proof container sized to prevent overflows, and must not contaminate groundwater. (3) Wash water and hardened concrete waste must be handled through disposal, reuse, or recycling and not discharged into storm drains, ditches or surface waters.

Uploaded by

Jorge Gutierrez
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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MANAGING CONCRETE

WASHOUT
DEQ rules effective 12/15/15
For managing concrete at
construction sites covered under
1200 C and 1200 CN permits

(a) Wash concrete trucks and


equipment off site (in an appropriately
protected area) or in designated
concrete washout areas only.

(b) Direct all wash water into a pit or


leak-proof container. The pit does not
need to be lined or leak-proof, but the
pit or container must be designed so
that no overflows can occur due to
inadequate sizing or precipitation.
Concrete wash water must not
adversely affect groundwater.

(c) Handle (for example, through


BEST MANAGEMENT PRACTICE: THIS CONCRETE DISPOSAL AREA IS CLEARLY DEMARCATED, LARGE ENOUGH,
disposal, reuse or recycling) wash water
AND CONSTRUCTED BELOW GRADE TO MAXIMIZE CONTAINMENT.
as waste. Do not dispose of concrete
wash water or wash out concrete trucks
As a concrete company or contractor, you have important responsibilities for
onto the ground, or into storm drains,
protecting plants, animals, people and waterways from concrete waste and wash
open ditches, streets, or streams.
water. Clean Water Services (CWS) is here to help you implement proper concrete
management on the construction site.
(d) Do not dump excess concrete on
Why does it matter? site, except in designated concrete
Concrete contains heavy metals and significant amounts of sediment; it is highly washout areas.
alkaline and corrosive. For these reasons and more, concrete material can have a
significant negative impact on fish and other aquatic organisms. Exposure to (e) Handle (for example, through
concrete can also affect groundwater quality, stream pH, tree growth, and other disposal, reuse or recycling) hardened
elements of a healthy environment. concrete waste consistent with
handling of other construction wastes.
How to keep construction site concrete out of local waterways
(f) Concrete spillage or concrete
• Keep washout area at least 50 feet from streets, storm drains, open ditches
discharge to surface waters of the state
and streams.
is prohibited.
• Contain the disposal to keep concrete from flowing down slope.
— from Section 8(ii)2 of DEQ 1200C/CN permit
• Use washout area only for chutes, tools and equipment.

• Install storm drain protection at any inlets that are down grade from the washout.
MANAGING CONCRETE WASHOUT

CONCRETE WASH-OUT AREA DETAIL.

Resources
Stormwater Best Management
Practice: Concrete Washout
epa.gov/npdes/pubs/
concretewashout.pdf
CORRECT DISPOSAL OF EXCESS CONCRETE HELPS PROTECT PLANTS, ANIMALS,
PEOPLE AND WATERWAYS.
The CWS Development Services group
is here to review your project in the
most effective and efficient way, while
protecting the Tualatin River Watershed.
Our partners include municipalities,
environmental organizations, and
developers large and small.

OVERFLOW POTENTIAL IS HIGH WHEN THE CONCRETE WASHOUT IS AT 75% OR DEVELOPMENT SERVICES
GREATER CAPACITY. 2550 SW Hillsboro Highway
Hillsboro, Oregon 97123
503.681.5100
permits@cleanwaterservices.org
cleanwaterservices.org/permits-development
Revised June 2016

Main Office • 2550 SW Hillsboro Highway • Hillsboro, Oregon 97123 • p: 503.681.3600 f: 503.681.3603 • cleanwaterservices.org

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