1. SECTION 1414 OF THE SAFE DRINKING WATER ACT ( SDWA ), 42 U.S.C. SECTIONS 300F TO 300J-26, AS AMENDED. 2. SAN YSIDRO WATER SYSTEM P.O. BOX 190 SAN YSIDRO, SANDOVAL COUNTY, NEW MEXICO 87503 3. RESPONDENT WAS IN VIOLATION OF SECTION 1412 OF THE SDWA BY 1) EXCEEDING THE MAXIMUM ALLOWABLE CONCENTRATION FOR ARSENIC, AND 2) EXCEEDING THE MAXIMUM ALLOWABLE CONCEN- TRATION FOR FLUORIDE. 4. RELIEF SOUGHT PURSUANT TO SECTION 1414 OF THE SDWA, EPA ISSUED THE RESPONDENT AN ADMINISTRATIVE ORDER (AO). THE AO ORDERED THE RESPONDENT TO: A) WITHIN 180 DAYS, SERVE WATER WITH A CONCENTRATION OF ARSENIC AND FLUORIDE THAT DOES NOT EXCEED THE MAXIMUM ALLOWABLE CONCENTRATION, AND 2) IF COMPLIANCE WITH MAXIMUM CONTAMINANT LEVEL ARSENIC AND FLUORIDE IS NOT POSSIBLE, WITHIN 60 DAYS, SUBMIT A COMPLIANCE SCHEDULETO EPA SHOWING MILESTONES THAT LEAD TO THE COMPLIANCE OF THE MODIFIED WATER SYSTEM AND SUBMIT QUARTERLY UPDATES ON THE PROGRESSION OF THE WATER SYSTEM UNTIL COMPLIANCE IS ACHIEVED.