This morning Lauren came back from the USGS library and left me a note along with a pile of xeroxed papers. She thinks that the water injection program that was done to replenish groundwater and prevent continuing salt water encroachment in the Pajaro Valley might have some relation to the levee problems.

Hmm. Interesting idea.

The diagram from the State report showing the area of injection is interesting. Seems to correspond to the area of levee failures. Reminds me of the failure of the Baldwin hills reservoir in the 1960s.

[1] In the early 1970s my partner Doug Hamilton made the shrewd observation that the failure of the Baldwin Hills reservoir had been triggered by reinjection of wastewater into the exhausted Inglewood oil field. See Ground Rupture in the Baldwin Hills which was published in 1974.