Geosynthetics October/November 2019 - 41

Case Study

Nature area drainage
control with GCCM
By Joe Royer, Kurt Chirbas and Ziad Mazboudi

T

he City of Laguna Niguel in Orange County, Calif., has its origins in the Rancho
Niguel Mexican land grant, acquired in 1959 by the Laguna Niguel Corp. to develop
one of California's first master-planned communities, which has become predominantly a
bedroom community. The city encompasses a total of 14.9 square miles (38.6 km2)-14.8
square miles (38.3 km2) of it is land and 0.05 square mile (0.1 km2) of it (0.35%) is water.
The city land consists of mostly hilly terrain within the San Joaquin Hills. The average
elevation is 400 feet (121.9 m); elevations range from near sea level to 936 feet (285.3 m)
at the summit of Niguel Hill in the southwest corner of the city.
The city continues to review and implement its stormwater management and urban
runoff management programs to meet all regulations designed to protect the quality of
water in its creeks that eventually discharge into the Pacific Ocean. The current layers of
regulatory compliance, which continue to evolve, affecting the City of Laguna Niguel for
the stormwater requirements include:
* Federal (The Federal Clean Water Act)
* California state (Porter-Cologne Water Quality Control Act)
* Regional (San Diego Regional Water Quality Control Board)
* The City of Laguna Niguel (Stormwater Runoff Control Ordinance-Section 6-3-400)

PROJECT HIGHLIGHTS
LAGUNA NIGUEL
DRAINAGE CONTROL
OWNER

City of Laguna Niguel
LOCATION

Laguna Niguel, Calif.
DISTRIBUTOR

Soil Solutions, Camarillo, Calif.
DESIGN ENGINEER

Milliken Infrastructure Solutions

While administering these management programs can be time-consuming and costly
for the city, the city sees them as an asset for the community and its preservation of the
sensitive environment that surrounds it. The city's public works department strives to
enhance its program while maintaining or reducing its annual operating costs. One way it
accomplishes this is by evaluating current and new products and technologies to help support its requirements to monitor and improve the stormwater and urban runoff water quality during the dry and wet seasons. Its typical evaluation for reviewing a product includes:
* Effectiveness/performance
* Overall cost (installation and maintenance)
* Functional longevity
* Installation requirements
* Minimal disturbances to surrounding area
* Minimal long-term maintenance
* Functionality as system approach with other products
* Environmentally friendly
* Multiple solution uses (such as weed abatement, soil stabilization and hydraulic conditions)

GEOSYNTHETICS PRODUCT

Concrete Cloth CC-5
GEOSYNTHETICS MANUFACTURER

Clock Spring/NRI, formerly
Milliken Infrastructure Solutions

Joe Royer, Ph.D., is development manager
with Clockspring-NRI in Spartanburg, S.C
Kurt Chibas, P.E., CPESC, is western regional
manager for concrete solutions for
Clockspring-NRI in Sacramento, Calif.
Ziad Mazboudi, P.E., D.WRE, is senior civil
engineer for the City of Laguna Niguel
Public Works in California.
Photographs courtesy of the authors.

www.GeosyntheticsMagazine.com

41


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Geosynthetics October/November 2019

Table of Contents for the Digital Edition of Geosynthetics October/November 2019

Geosynthetics October/November 2019 - Cover1
Geosynthetics October/November 2019 - Cover2
Geosynthetics October/November 2019 - 1
Geosynthetics October/November 2019 - 2
Geosynthetics October/November 2019 - 3
Geosynthetics October/November 2019 - 4
Geosynthetics October/November 2019 - 5
Geosynthetics October/November 2019 - 6
Geosynthetics October/November 2019 - 7
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Geosynthetics October/November 2019 - 20
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Geosynthetics October/November 2019 - 27
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Geosynthetics October/November 2019 - 30
Geosynthetics October/November 2019 - 31
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Geosynthetics October/November 2019 - 35
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Geosynthetics October/November 2019 - 37
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Geosynthetics October/November 2019 - 40
Geosynthetics October/November 2019 - 41
Geosynthetics October/November 2019 - 42
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Geosynthetics October/November 2019 - 55
Geosynthetics October/November 2019 - 56
Geosynthetics October/November 2019 - Cover3
Geosynthetics October/November 2019 - Cover4
Geosynthetics October/November 2019 - Blank1
Geosynthetics October/November 2019 - GeoConf20_1
Geosynthetics October/November 2019 - GeoConf20_2
Geosynthetics October/November 2019 - GeoConf20_4
Geosynthetics October/November 2019 - GeoConf20_5
Geosynthetics October/November 2019 - GeoConf20_6
Geosynthetics October/November 2019 - GeoConf20_7
Geosynthetics October/November 2019 - GeoConf20_3
Geosynthetics October/November 2019 - GeoConf20_8
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