SF Water Supply & Ground Water Testing

San Francisco Water Supply, New Chemicals & Ground Water Testing For the first time in nearly nine decades, San Francisco is blending local groundwater with Hetch Hetchy Reservoir water, sourced from over 167 miles away.  For some, this change has been hard to swallow as San Francisco residents have long held bragging rights to exceptional
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Dirty Electricity from LEDs

Dirty Electricity from LEDs People interested high fidelity sound systems or low-EMF environments want to minimize electromagnetic interference (AKA: EMI, High-Voltage Transients, Electrical Noise, and Dirty Electricity) from lighting systems. Compact fluorescent lightbulbs (CFLs) – the curly pig tail variety with some mercury in them – are notoriously “dirty” and create significant EMI (Electromagnetic Interference).
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IAQ Issues LEED Building San Francisco – Part Two

IAQ Issues LEED Building – Part Two As a healthy building inspector and industrial hygienist, I have performed several pre-occupancy IEQ tests to the LEED standard and specifically for LEED certification. I am familiar with both the testing and flush out options and IAQ issues related LEED Building certification. The flush out option is most
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IAQ Issues in a LEED Building – Part One

Air Quality Problems in the EPA’s San Francisco LEED EBOM Building IAQ Issues in a LEED Building Part ONE At the end of February 2016, NBC ran a segment investigating whether the EPA Region 9 building, at 75 Hawthorne Street in downtown San Francisco, was a Sick Building. All answers pointed to yes. In the
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Who is Healthy Building Science?

We are an environmental consulting firm based in the San Francisco Bay Area, a group of scientists working to make your indoor spaces healthier. We test your building or property to find harmful pollutants.
Healthy Building Science

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