Roseville, CA May 2012 – Team Front Range Environmental is
giving back to the community through Roseville’s Adopt-A-Creek Program. Applying their knowledge of stormwater management to assist the City of Roseville in their efforts to restore the local ancient spawning grounds of Steelhead and Salmon.
With passion and dedication Front Range Environmental
personnel donate their time in the hopes of providing future generations a
clean and healthy watershed.
Phase II of the Clean Water Act requires stormwater surface flows that are captured meet higher standards prior to being discharged into public waterways. One manner in which this is achieved is by installing some type of a Water Quality Unit (WQU).
There are a variety of WQU available from various manufactures however all require a maintenance program to ensure proper function. Here are some examples of the types of WQU commonly used:
• Aqua Swirl Hydrodynamic Separator
• Continuous Deflective Separation (CDS)
• ADS HDPE Water Quality Unit
The technical specifications of when these units must be cleaned can sometimes be confusing, thus many local regulations mandate the system be checked and/or cleaned annually. Failure to inspect and clean, along with maintain proper documentation of the maintenance, can result in a Notice of Violation being levied against the owner.
It is recommended these units be inspected on a quarterly basis and during this time, the floating debris should be removed from the system. A sludge judge is used to then determine the amount of sediment collected in the unit. It is important to properly document this procedure and include date stamp photographs for verification.
The annual cleaning usually consists of removing the liquid and sediment by use of a vacuum truck. The inside is washed down and any hydrocarbon pads or screens should be replaced. Additionally, the inside of the unit is inspected by properly trained personnel entering under a confined space permit.
Following this maintenance plan can help ensure you are properly treating your stormwater runoff while maintaining the proper operation of your WQU.
The compounds consisting of only carbon and hydrogen are called
hydrocarbons. The natural sources of hydrocarbons are petroleum (crude oil) and natural gas. Crude oil and natural gas occur organically deep inside the earth.
However, they should not be found in your detention pond systems. Continue reading
“By failing to prepare, you are preparing to fail”
Front Range Environment has applied for numerous permits with the EPA, DNR,
Cities, Counties and States. Whether obtaining permits for a rehab,
remediation, native prairie burn or construction, inevitably the process of
documenting and obtaining the permit takes longer than anticipated. Continue reading