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Science 18 July 1986:
Vol. 233. no. 4761, p. 263
DOI: 10.1126/science.233.4761.263-c
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Erratum

Results of a California state survey on ground water contamination were incorrectly reported in the article "Ground water ills: Many diagnoses, few remedies" by Marjorie Sun (News & Comment, 20 June, p. 1490). Six percent, not one-fifth, of California's large drinking water wells fed by ground water exceeded state pollution limits. One-fifth of the wells showed trace amounts of organic chemicals.

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