South Lagoon Levee Closed 9/27-9/30 for repairs

Dear Residents,

please note that sections of the levee will be closed September 27-30th as we are doing some minor levee repairs to the sections outline in the picture below. please use the lower levee road to get out to Unit V.

Thank you.



Pacific Gas and Electric Tower Painting Project 9/17-10/07

This work will be conducted between the hours of 8 a.m. and 5 p.m. While work is underway, we will make sure that all proper safety measures are in place to protect the health of our customers, workers and the environment. Safety measures include:

  • Implementing all required COVID-19 safety measures.
  • Placing a tarp under and around the tower to capture any loose paint or debris.
  • Plastic or other tarps may be used depending on the tower’s location and other factors.
  • Cleaning and inspecting the work area and tarps at the end of each day.
  • Ensuring proper disposal of paint debris and tarps when used.
  • No power sanding, grinding or heat guns will be used.
    PGE_TPP_Bel Marin Keys Tower Painting Schedule_20210913



Recently the BMKCSD Waterway’s Manager noticed a reddish discoloration forming within the Navigation Locks (photo below).  Upon further investigation it was revealed to be a school of Brine shrimp (Artemia) genus of aquatic crustaceans.  Commonly referred to as Crill (whale food) they are the same organisms marketed and sold commercially as Sea Monkeys, or as fish food from pet stores.  Brine shrimp, as the name implies, are tolerant of a wide range of water salinity, but prefer higher concentration levels.

Sometimes Brine shrimp eggs will float to the surface and form mats which appear unsightly, however, they are relatively sensitive to the environment. Brine shrimp are a secondary consumer that eats microscopic planktonic algae and are themselves an important food source for larger predatory organisms. They tend to isolate themselves in areas away from predators when possible. Brine shrimp are not harmful, they do not bite, sting, produce toxins, and are not a vector for disease. Their presence is often seen as an indicator of a healthy and clean ecosystem.

We will continue to monitor and look at best management practices to keep them in the lagoons as they are an import food source in the lagoons.



Update 2/8/2021: 

This notice updates prior information regarding the algae observed in the Bel Marin Keys Community Services District (BMKCSD) North Lagoon and South Lagoon at the end of November 2020. Water samples from both lagoons were sent for testing. The BMKCSD was informed by representatives of the testing facilities and individuals with whom the BMKCSD consulted with, that the observed algae is of a non-toxin producing species. BMKCSD has therefore removed lock restrictions and has removed its prior recommendations regarding water contact.  

Please see the attached memo titled “Update on Algae Presence in North and South Lagoons” that is accessible by clinking this link Memo: Update on Algae Presence in North and South Lagoons.

 The BMKCSD continues to do monthly water testing. For the most recent and past testing results, please click the following link to water quality reports:

 If you have any questions regarding this notice, please email the BMKCSD office at or you may leave a message on the District voicemail at 415-883-4222. Additional information will be posted on the District website ( 


Previous Updates

Algae Update 12.31.20

Algae Update 12.18.20

Algae notice 12.9.20


Homekey Project Update May 4, 2021: County seeking Properties to Address Homelessness

County of Marin have created a Homekey Project  informational page for further information on the proposed locations.

County Seeks Properties to Address Homelessness

State funding available for purchases and conversions to stem health crisis

San Rafael, CA – The County of Marin is looking for local property owners who might be interested in selling an existing building or parcel so it can be converted to support programs to address homelessness.

Project Homekey is part of the state’s response to protecting Californians experiencing homelessness who are at high risk for serious illness and are impacted by the COVID-19 pandemic. The County anticipates that the state will provide a second round of grant funds to counties to purchase and/or rehabilitate properties to be used as interim and permanent housing.  

The County of Marin successfully pursued Project Homekey funding in 2020 and now has two locations – existing buildings in Corte Madera and San Rafael – targeted to provide permanent supportive housing. In anticipation of a second round of Project Homekey funding, the Marin County Department of Health and Human Services (HHS) has issued a request for information for property owners or operators potentially interested selling a property to the County and/or a development partner. Appropriate properties include (but are not limited to): hotel/motel properties, certain commercial properties, mobile home/RV parks, and other properties that could be used for interim or permanent housing.

The County and a public/private coalition called Opening Doors Marin recently hosted a series of 10 informational sessions to solicit feedback on possible project criteria and answer questions. The County will continue to work closely with towns, cities, and residents as the application process proceeds.

The release of information, along with a question form and submission information, are available on the HHS website. For priority consideration, submissions are requested by May 14.

Homelessness is a serious public health issue nationwide resulting in trauma, exacerbated chronic illness and reduced life expectancy for those who experience it. In Marin, more than a 1,000 people were experiencing homelessness at the time of HHS’ last full homeless census in January 2019. In a county with scare housing resources, high housing costs and limited rental options, people with limited incomes or disabilities often struggle to access and maintain adequate housing without assistance. The pandemic has exacerbated many of those realities and further disconnected vulnerable residents from the support they need.

In an effort to combat the growing homelessness crisis, the State of California launched the $750 million Project Homekey in July 2020 with the aim of helping local communities rapidly acquire properties to rapidly house people experiencing homelessness during the public health emergency. More information is available at  


Bel Marin Keys V Hamilton Restoration Re-Mobilization

The District received this email from State Coastal Conservancy project manager Russ Barnes in regards to the BMK5 Hamilton Wetland Restoration Project:

“I wanted to let you know that the BMK Unit V Phase 1 project has been deemed “essential” and the contractor will be remobilizing as planned beginning Wednesday, April 1.

Please let the residents know.

We will be restructuring the lower gate to allow for wider loads to pass.

As before, large vehicles will be working on site and visibility can be limited so, please, encourage your residents to stay on the upper levee road and to keep pets on leashes,  We do not want anyone, two legged or four legged, getting hurt…”

If you have any questions please refer to the SCC website and sign up to receive emails regarding updates to this project. Russ Barnes contact information is also available on the site.

Hamilton Wetlands and Bel Marin Keys Unit V Restoration