International Boundary and Water Commission

Tijuana Sewage Crisis: Progress, setbacks, and big questions

The EPA's latest quarterly report shows construction underway, emergency repairs completed, and Mexico surpassing its 2026 funding commitment.

Tijuana River crisis sparks action on both sides of border

California opened applications for $46 million in new grants on June 11, 2026, to fight pollution in the Tijuana River and New River. San Diego County launched an economic impact study last week...

Ozone pilot shows promise in Tijuana River cleanup

A federal pilot found ozone nanobubble treatment sharply reduced bacteria and odors in Tijuana River sewage flows, though scaling challenges remain.

Battling the Stink: Calif. South Bay’s sewage crisis intensifies

South Bay's sewage crisis from Tijuana River worsens, causing health issues. Lawmakers urge EPA action; residents sue Veolia over spills.

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Western-Water is for laypeople who are interested in general water news and their water rights. Managed by a water paralegal with over 30 years' experience in Arizona water issues, you'll find calculators, tips and general information geared for water users in the Colorado River states. Do not rely on this site for legal advice. The picture was taken while hiking at Aravaipa Canyon, a must see!

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Helen C. on Report: Colorado River Basin bakes under relentless droughtJuly 11, 2026
Severe....relentless....extreme...urgent. you're running out of adjectives and we're running out of time....
Helen C. on The Roundup: Fire and drought squeeze the Colorado River BasinJuly 11, 2026
I don't know how you could make a more persuasive argument for the existential nature of this crisis. What will…
Helen C. on Report: Colorado River Basin bakes under relentless droughtJuly 11, 2026
It's easy to overlook the fact that this is a HUGE swath of the country. We dismiss it as a…
Helen C. on Tijuana Sewage Crisis: Progress, setbacks, and big questionsJuly 6, 2026
Remarkable how there always seems to be a disaster before we ONCE AGAIN acknowledge the indisputable fact that we are…
Helen C. on Groundwater Nitrates: A slow crisis below our feetJuly 6, 2026
It will be a very long time before we recognize what we've done in the pursuit of profit. I recommend…