Monterey Waterkeeper

Monterey Waterkeeper We protect and restore fishable, swimmable and drinkable waters in the northern Central Coast region.

Monterey Waterkeeper is a member of the California Coastkeeper Alliance and the national Waterkeeper Alliance.

Clean water is not guaranteed. It’s protected.Across California’s Central Coast, protecting our rivers, coastlines, and ...
06/18/2026

Clean water is not guaranteed. It’s protected.

Across California’s Central Coast, protecting our rivers, coastlines, and drinking water requires ongoing commitment — and leadership.

Monterey Waterkeeper is advancing this work every day through science-based advocacy, restoration, and community engagement. Leadership support makes this possible.

We invite you to be part of the 2026 Garden Party for Clean Water as a sponsor — a meaningful opportunity to align your business or organization with lasting environmental impact.

Saturday, October 3, 2026
Pacific Grove Museum of Natural History
Native Plant Garden

Leadership sponsorship supports year-round efforts to protect the health of our environment and the communities that depend on it.

Learn more: www.montereywaterkeeper.org/event/autumn-afternoon-garden-party/

For sponsorship opportunities:
[email protected]

[email protected]

We’re back with a summer session of Gabilan Creek cleanups!Join Monterey Waterkeeper Wednesday, June 17th (and every Wed...
06/16/2026

We’re back with a summer session of Gabilan Creek cleanups!

Join Monterey Waterkeeper Wednesday, June 17th (and every Wednesday) from 3:30-4:30 pm to learn about our local watersheds, clean up trash from our park, and conduct water quality testing. Discover the connection between the land and sea and the impact of household hazardous waste on our environment and health.

Wednesday, June 17th, 2026
1900 Independence Blvd Salinas, CA 93906 (near the flagpole)

RSVP: www.montereywaterkeeper.org/event/gabilan-creek-to-coast-restoration-project-june-17th/

Why sponsor Monterey Waterkeeper?Because clean water is essential — to public health, to our environment, and to the fut...
06/15/2026

Why sponsor Monterey Waterkeeper?

Because clean water is essential — to public health, to our environment, and to the future of the Central Coast.

Your sponsorship supports year-round work:
• Protecting waterways from pollution
• Advancing safe, affordable drinking water
• Educating and engaging future water stewards

The Autumn Afternoon Garden Party for Clean Water is an opportunity to stand behind that mission in a meaningful way.

Sponsorship opportunities are now open.

https://www.montereywaterkeeper.org/event/autumn-afternoon-garden-party/

This fall, Monterey Waterkeeper invites you to an Autumn Afternoon Garden Party in support of clean water across the Cen...
06/11/2026

This fall, Monterey Waterkeeper invites you to an Autumn Afternoon Garden Party in support of clean water across the Central Coast. Set in the Native Plant Garden at the Pacific Grove Museum of Natural History, the afternoon brings together longtime supporters, community partners, and new friends for a relaxed, meaningful gathering of local wines, seasonal small bites, and live music.

Your support helps protect vulnerable waterways, advance long-term solutions for safe and affordable drinking water, and inspire the next generation of water stewards — work that reaches far beyond a single afternoon.

Saturday, October 3, 2026 • 4:30–6:30 p.m.
Pacific Grove Museum of Natural History, Native Plant Garden, Pacific Grove, California

Reserve your tickets, make a donation, or become a sponsor today. To donate an item to the silent auction, please contact us by September 1, 2026.

Tickets, donations & sponsorship: givebutter.com/monterey-waterkeepers-2026-garden-party-rcihwh

Clean water requires leadership.Monterey Waterkeeper works at the intersection of science, policy, and community to prot...
06/11/2026

Clean water requires leadership.

Monterey Waterkeeper works at the intersection of science, policy, and community to protect the Central Coast’s most vital resource.

As a 2026 Garden Party Leadership Supporter, your organization demonstrates a commitment to environmental stewardship, public health, and long-term regional resilience.

This is an opportunity to align your brand with measurable impact — and a mission that matters.

Now accepting sponsorship commitments.

Learn more:
https://www.montereywaterkeeper.org/event/autumn-afternoon-garden-party/

Contact: [email protected]
| [email protected]

Sponsorships are now open for Monterey Waterkeeper’s 2026 Garden Party for Clean Water — and early commitments matter.Le...
06/09/2026

Sponsorships are now open for Monterey Waterkeeper’s 2026 Garden Party for Clean Water — and early commitments matter.

Leadership support helps advance critical work across the Central Coast, including pollution prevention, watershed restoration, and access to safe drinking water for all communities.

This is not just event recognition — it is an investment in long-term, science-based solutions.

Limited leadership opportunities available.

Learn more and secure your sponsorship:
https://www.montereywaterkeeper.org/event/autumn-afternoon-garden-party/

Contact: [email protected]
| [email protected]

Supporting clean water is an investment in the health of our communities and the future of the Central Coast.Monterey Wa...
06/04/2026

Supporting clean water is an investment in the health of our communities and the future of the Central Coast.

Monterey Waterkeeper’s work spans pollution prevention, watershed restoration, and ensuring access to safe drinking water for all.

Leadership sponsorship of the 2026 Garden Party for Clean Water helps make this work possible — not just for one event, but year-round.

Sponsorship opportunities are now open.

Learn more:
https://www.montereywaterkeeper.org/event/autumn-afternoon-garden-party/

Contact: [email protected]
| [email protected]

06/03/2026

California State Water Resources Control Board (SWRCB)
Revised Drinking Water Notification and Response Levels for Manganese

On June 2, 2026, under the authority of the Deputy Director of the State Water Board’s Division of Drinking Water (Division), California issued revised notification and response levels for manganese.

The current notification and response levels for manganese are:

Notification Level: 0.05 milligrams per liter (mg/L) (Based on a running annual average)
Response Level: 0.20 milligrams per liter (mg/L) (Based on a single confirmed detection)
As the first step in establishing a manganese primary maximum contaminant level, the Division has requested the Office of Environmental Health Hazard Assessment establish a manganese Public Health Goal.

Background

Manganese is an essential nutrient and enzyme cofactor that is naturally present in many foods and available as a dietary supplement. Despite its nutritional benefits, adverse health effects can be caused by over-exposure. Formula-fed infants may be particularly susceptible to adverse neurotoxicological effects from manganese exposure because they absorb and retain more manganese than adults. Public health notification and related mitigation can protect formula-fed infants by notifying parents and caregivers that short periods of manganese exposure above the response level may lead to developmental impacts.

Notification and response levels are non-regulatory, health-based advisory levels established for contaminants in drinking water for which maximum contaminant levels have not been established.

Public Water System Notification Requirements

Within 30 days after a public water system learns of a confirmed detection exceeding a maximum contaminant level, notification and/or response level, the public water system must notify its governing body of the exceedance(s) and any relevant governing bodies of the areas it serves (Health and Safety Code section 116455).

Health and Safety Code section 116450, subdivision (e) authorizes the Division to require a public water system to notify its customers to avoid internal consumption of the water supply and use bottled water due to a chemical contamination problem that may pose a health risk. Health and Safety Code section 116450, subdivision (g), further requires certain customers (such as schools, rental properties, and businesses) to provide the same notice to those consuming the water.

The Division considers the exceedance of the manganese response level to pose a potential health risk to formula-fed infants and recommends notifying customers to use an alternative water supply (bottled water) when preparing formula for infants. Accordingly, pursuant to Health and Safety Code section 116450, to reduce public exposure following a confirmed response level exceedance a community water system must notify customers to use an alternative water supply (bottled water) when preparing formula for infants, or mitigate the exposure until exceedances cease (take source offline, provide treatment or provision of alternative water).

The Division may require the same notice as described in the paragraph above for non-community water systems that serve a vulnerable population, as determined on a case-by-case basis.

Community Water System Monitoring Requirements

Water systems must confirm their monitoring schedules are current and compliant. Specifically, community systems must test groundwater every three years and conduct quarterly monitoring if manganese exceeds the secondary maximum contaminant level. The Division is actively reviewing compliance. Contact District Office with any questions.

Funding for Manganese

See link below to Manganese Frequently Asked Questions



Additional information is available on the Division’s websites:

Notification Levels:

https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/NotificationLevels.html

Manganese Revised Notification and Response Level Issuance Document:

https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/docs/2026/manganese-nl-issuance-2026.pdf

Manganese:

https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/Manganese.html

Manganese Frequently Asked Questions:

https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/docs/2026/mn-faq.pdf

Clean water doesn’t happen by accident. It’s protected — every day.Monterey Waterkeeper works across the Central Coast t...
06/01/2026

Clean water doesn’t happen by accident. It’s protected — every day.

Monterey Waterkeeper works across the Central Coast to prevent pollution, restore waterways, and ensure all communities have access to safe, affordable drinking water.

Join us on October 3 for the Autumn Afternoon Garden Party for Clean Water — a gathering rooted in purpose, community, and stewardship.

Pacific Grove Museum of Natural History
4:30 – 6:30 p.m.

More details coming soon:
https://www.montereywaterkeeper.org/event/autumn-afternoon-garden-party/

We took 90 seventh grade students out to the Elkhorn Slough Reserve during the months of April and May, and it was 87% o...
05/29/2026

We took 90 seventh grade students out to the Elkhorn Slough Reserve during the months of April and May, and it was 87% of students first times at the slough! While there, we learned about healthy watersheds, food chains, local habitats and birds, and how to be good environmental stewards.

We are so happy to partner with North Monterey County Middle School and on these field trips, and thank you to the and for making this happen!

Address

PO Box 4311
Salinas, CA
93912

Telephone

+18312041381

Website

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