Stormwater Testing

Stormwater Preparedness: Are You Ready for Stormwater Season?

Stormwater season is upon us! If you haven’t reviewed your company stormwater pollution prevention plan (SWPPP) recently or are unsure of the monitoring parameters required under your Standard Industrial Code (SIC) within the current Industrial General Permit (IGP), now is a good time to review your monitoring responsibilities. Monitoring locations are identified in the SWPPP, and tests are typically specific to your industry and dictated by your SIC code. It is always advisable to review the SWPPP so that you make certain your organization is in compliance with the region’s…

Stormwater Preparedness: Are You Ready for Stormwater Season?

Stormwater season is upon us! If you haven’t reviewed your company stormwater pollution prevention plan (SWPPP) recently or are unsure of the monitoring parameters required under your Standard Industrial Code (SIC) within the current Industrial General Permit (IGP), now is a good time to review your monitoring responsibilities. Monitoring locations are identified in the SWPPP, and tests are typically specific to your industry and dictated by your SIC code. It is always advisable to review the SWPPP so that you make certain your organization is in compliance with the region’s…

An Ounce of Preparation Wise For Stormwater Monitoring Season In Spite of Likely La Nina Winter

Autumn is here and California’s rainy season, which typically lasts from November to April, is right around the corner, but this year’s stormwater season may not see many storms. The latest data from the National Oceanic and Atmospheric Administration (NOAA) suggests California could be heading into a La Nina winter for the second year in a row. Despite the lack of rain clouds brewing in the near future, now is a good time to start dusting your stormwater management plans.

The El Nino Southern Oscillation (ENSO) phenomenon is an important factor in global climate patterns and rainfall. Scientists categorize ENSO as a single ocean-atmospheric phenomenon with three phases: El Nino, La Nina, and neutral. During a La Nina, sea surface temperatures (SST) in the equatorial Pacific drop below normal thresholds and trigger a….

Pyrethroids—Gardeners Best Friend Versus Fishy Foe

Spring is underway, and across California, gardeners and farmers are combating the season’s annual pest problem: insects. But the pesticides that protect our roses and our lettuce may be harming more than just the bugs. Pesticides, in particular pyrethroids, are making their way from our gardens, farms, and houses into our watersheds, where they pose a serious threat to California’s aquatic populations. With annual pesticide use expected to peak in the coming months, now is the time to ask some questions. What are pyrethroids? How are they impacting our water systems? What is being done to mitigate the potential problems associated with their use?

Since the late 19th century, pyrethroids have been around and are similar to some naturally occurring insecticides, called pyrethrins, found in chrysanthemum flowers. But unlike pyrethrins, pyrethroids are manufactured chemicals designed to quickly incapacitate insect nervous systems and simultaneously resist environmental degradation. Their low toxicity to humans, mammals, and birds makes them ideal for a variety of agricultural, public health, and domestic purposes. Pyrethroid compounds are effective insecticides employed on farms and in homes across the US. In particular, pyrethroids are an efficient…

Portantino Leads Effort to Manage CECs in CA

Over the last decade, advancements in analytical testing technologies have revealed new categories of previously undetectable substances now dubbed as CECs—Constituents of Emerging Concern. This ever broadening group of chemicals and microorganisms pose unprecedented technical, legal, and financial challenges; but arguably, the biggest hurdle is the lack of available information about the persistence, prevalence, or toxicity of many substances referred to as CECs. In an effort to fill those data gaps, Senator Portantino introduced Senate Bill Number 230 (SB 230) to California’s State legislature this year. The bill, which seems to enjoy wide support from water agencies, would mark the first state-wide effort to address CECs as a category.

While information has grown over the past few years, most research has focused on high-profile chemicals or chemical families. This is partially because CECs are such an immense and diverse category; any new or newly detected and unregulated substance found in California’s waters is considered a CEC. This broad definition encompasses thousands of …

Congress and States Take Action Against PFAS

Amid nationwide pressure to end the toxic legacy of these “forever chemicals,” a new tide of state and federal per- and polyfluoroalkyl substances (PFAS) legislation is inundating the country. Last month, Michigan Representatives Debbie Dingell and Fred Upton, along with 25 other members of Congress, introduced a bold new PFAS Action Act to the House of Representatives. The proposed bill includes some far-reaching provisions like establishing certain PFAS as “hazardous substances” under the Superfund law--an action that remains highly controversial.

This year alone, over 180 bills concerned with PFAS will be under consideration in 27 states. Many of these laws aim to establish safe drinking water levels, phase out PFAS based firefighting foams, allocate money towards research and remediation of PFAS, and address PFAS in consumer products, particularly in food packaging. Outside California, states that have recently passed laws concerning PFAS include…