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February 23, 2018

It’s common in Southern California to discharge groundwater from dewatering operations (for instance, with a sump pump such as the one on the left)in subterranean building structures , such as a parking garage or basement, to the nearby storm sewer.

The dewatering is necessary to protect the integrity of the building structure from rising groundwater. Within the jurisdiction of the Los Angeles Regional Water Quality Control Board (LARWQCB), the practice is regulated unde...

February 1, 2018

What is a Hazardous Materials Business Plan?

Hazardous Materials Business Plans (HMBP's) exist in order to provide the public, emergency responding agencies, and local government agencies information regarding the potential for hazardous chemical situations in the community. HMBP's aid in:

  • Emergency planning

  • Emergency release notification

  • Chemical storage reporting

  • Toxic chemical release inventory reporting.

A business is required to have an HMBP if i...

May 19, 2016

Aerial photographs can be a key piece of information when determining the history of a property. Aerial photographs are one piece of the puzzle, and when combined with historical city directories, Sanborn Fire Insurance Maps, historical topographic maps, and site owner/user interviews, can assist the assessor in determining the previous usages of the property that may contribute to environmental issues. Aerial photograph review is an element of the historical document r...

October 2, 2015

Waterstone will conduct your subsurface investigation in accordance with the most current regulatory guidances. For active soil gas surveys, this means using the latest and greatest Advisory on Active Soil Gas Investigations published in July 2015. What do these changes mean for you? Because the agencies have chosen to eliminate purge test sampling, at least two fewer unnecessary samples will need to be collected and analyzed during each investigation. Also, decommissio...

September 28, 2015

The new stormwater year begins October 1, 2015. Time to start watching the weather reports and scheduling your monthly inspections in accordance with the Industrial and Construction General Stormwater Permits.

August 1, 2015

 

No Phase I Environmental Site Assessment can remove all the uncertainty from your purchase regarding the potential for recognized environmental conditions in connection with a property. Performance of this practice is intended to reduce, but not eliminate, uncertainty regarding the potential for recognized environmental conditions in connection with a property, and this practice recognizes reasonable limits of time and cost. 

 

A Phase...

July 1, 2015

 

It's easy to let Waterstone update your Hazardous Materials Business Plan online. Your local CUPA needs an updated reported annually, by March 1. Waterstone will do all the heavy lifting and remind you when it's time to update. Just let us know if you've added any new hazardous materials or store them in a new location. Also, let us know if you have any changes to your emergency contact information.

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NPDES and WDR Self-Monitoring

February 23, 2018

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