Category Archives: Water Infrastructure and Treatment Design

How to Secure Federal Funds for your Wastewater Treatment Plant Upgrade

The average wastewater treatment plant (WWTP) in the U.S. is 40 to 50 years old and many of these aging facilities need upgrades. Federal funding programs are an option to complete a planned wastewater treatment plant upgrade. However, access to those funds comes with a caveat. To ensure climate resiliency and protect against flooding, the

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Horizontal Directional Drilling Streamlines Pipeline Installation

Permitting pipeline projects in extremely congested or environmentally sensitive areas can be burdensome from a schedule and financial standpoint. Horizontal directional drilling (HDD) construction methods can minimize surface disruption and often avoid impacts altogether. In this way, HDD offers great potential to reduce a project’s schedule and budget. Horizontal Directional Drilling Process and Benefits The

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January Deadline for New Dam Safety Regulations

Owners of California dams classified as “extremely high hazard” need to submit updated Emergency Action Plans (EAP) to the state by January 1, 2018 under new dam safety regulations the state legislature passed earlier this year in response to the Oroville Dam spillway crisis. The looming EAP deadline is complicated by the new law’s requirement

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Advanced Modeling Identifies Storm Drain Solutions

Cities in the Coachella Valley have a history of dealing with damaging summer flash floods. Intense thunderstorms can dump several inches of rain in a short time while runoff rushes from the nearby San Jacinto Mountains into the lowland flats where the cities are built. The City of La Quinta suffered back-to-back damaging summer storms

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Developing Bid Documents for Cured-in-Place Sewer Rehab

Many cities whose sewer systems were constructed in the first half of the 20th century are plagued by sanitary sewer overflows (SSOs) due to long-neglected root intrusion and pipe defects. To combat this, sewers can be rehabilitated using trenchless cured-in-place pipe (CIPP) lining. This method can fully rehabilitate aging pipes at least three times faster and

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Do You Know the Difference Between Hydrology and Hydraulics?

Water is Earth’s most critical fluid in environmental processes and human life. When discussing stormwater management it is important to distinguish between hydrology and hydraulics. Some aspects of hydrology involve hydraulics but, in general, the two are very different. Here’s how to understand these differences. What is hydrology? Hydrology is the study of the circulation

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Will Your Flood Control System Actually Work in a Major Storm?

Many California counties use the 100-year storm as the design storm for regional flood control facilities and stormwater-related capital improvements. However new data show that the 100-year storm will be more intense than previously thought. Prior to 2013, storm intensities and volumes corresponding to certain size storm events (2-year, 5-year, 10-year, 25-year, 50-year, 100-year) were

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Understanding the 100-Year Storm and Whether Your Stormwater Infrastructure is at Risk

Perhaps inspiring Murphy’s later pronouncement, mathematician Augustus De Morgan said, “Whatever can happen, will happen if we make trials enough.” At some point, your flood infrastructure will be tested by a storm event equal to or larger than the event it was designed to withstand. The chance in any given year that a storm occurs

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Repurposing Flood Control Infrastructure to Leverage Stormwater Resources

Combining the drought and evidence of a “Godzilla” El Niño event likely this winter, stormwater is increasingly valued as an asset worth integrating into California’s overall water management strategy. Re-thinking how to leverage stormwater resources opens up opportunities for repurposing infrastructure designed and built to dispose of flood waters. More than one in five Californians—7

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Regional Medical Center Opens New Packaged Treatment Facility

A small packaged wastewater treatment plant designed to serve a regional medical center significantly improved the quality of treated effluent, and was completed under-budget, enabling the medical center to add a connection from the new plant to a nearby elder care center. The Hi-Desert Medical Center (HDMC) and the Joshua Basin Water District (JBWD) jointly

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