A&K HAS APPROX 37 SERVICE CONNECTIONS SERVING ABOUT 120 PEOPLE. FED JURISDICTION ATTACHES IN NON-PRIMARY STATES SUCH AS WYOMING TO WATER SUPPLIERS W/EITHER 15 SERVICE CONNEC- TIONS OR 25 REGUALR CONSUMERS. 42 USC SEC 300F(4). A&K HAS VIOLATED SDWA REGUALTIONS PUBLISHED AT 40 CFR PART 141 BY FAILING TO REGUALRLY SAMPLE FOR & REPORT ON THE PRESENCE OF MICROBIOLOGICAL CONTAMINANTS IN ITS DRINKING WATER. A&K HAS FAILED TO MAKE SUCH REPORTS 37 MONTHS DURING THE PERIOD 3/78 TO 6/82. THE REGULATIONS HAVE BEEN IN EFFECT SINCE 6/77. PRIOR TO 3/78, NO SUCH REPORTS WERE MADE TO EPA. A&K HAS ALSO NEVER MONITORED OR REPORTED ON TH PRESENCE OF RADIONUCLIDES IN ITS WATER, NEVER PROVIDED NOTIFICATION OF ITS VIOL'S TO EITHER THE AGENCY OR THE PUBLIC & HAS NOT MAINTAINED REQUIRED RECORDS. DURING ONE REPORTING PERIOD A&K ALSO VIOL'D THE MAXIMUM CONTAMINANT LEVEL FOR COLIFORM BAC- TERIA.