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Water System Detail Information

Water System No.:

AZ0403702

Federal Type:

C

Water System Name:

GRAND CANYON NATIONAL PARK

Primary Source:

GW

Principal County Served:

COCONINO

System Status:

A - MAP

Comments:

Activity Date:

06-01-1977




Rule Analyte/Analyte Group Eff. Begin Eff. End App. Date For Comp.
DBP2 DBP2 - STAGE 2 DBP 10-01-2013 10-01-2013 Y
THE STAGE 2 INCREASED COMPLIANCE MONITORING PLAN, SUMMARY SHEET AND MAP WERE APPROVED ON 7/28/16. APPROVAL WAS BASED UPON REVIEW OF THE SYSTEM¿S STAGE 1 MONITORING RESULTS FROM 2005-2013, AND STAGE 1 SAMPLING SCHEDULE. STAGE 2 SAMPLES WERE COLLECTED (PRIOR TO THIS APPROVAL) DURING 2014 AND 2015 WILL BE CREDITED TO THE SYSTEM. IN 2014, STAGE 2 MONITORING WILL CONSIST OF A DUAL SAMPLE SET (TTHM & HAA5), COLLECTED QUARTERLY, AT ONE LOCATION (01-A), DURING THE THIRD MONTH OF EACH QUARTER. IN 2015, STAGE 2 MONITORING WILL CONSIST OF DUAL SAMPLE SETS (TTHM & HAA5), COLLECTED QUARTERLY, AT FOUR LOCATIONS (01-A, 02-A, 03-A, 04-A), DURING THE THIRD MONTH OF EACH QUARTER. BEGINNING IN 2016, STAGE 2 MONITORING WILL CONSIST OF DUAL SAMPLES, COLLECTED EVERY 90 DAYS, AT FOUR LOCATIONS (01-A,02-A, 03-A, 04-A) DURING THE SECOND MONTH OF EACH QUARTER (FEBRUARY, MAY(MONTH OF HIGHEST DBP CONCENTRATION, AUGUST), AND NOVEMBER). IN MAY 2016, THE SYSTEM TRIGGERED FROM ROUTINE TO INCREASED MONITORING. BASED ON THE EPA STAGE 2 DBP RULE, THE MONITORING SCHEDULE DOES NOT CHANGE BUT THE SYSTEM IS NOW CONSIDERED TO BE ON ¿INCREASED MONITORING¿. PLEASE BE SURE TO MARK THE CHAIN OF CUSTODY WITH THE SITE IDS AND STAGE 2 COMPLIANCE MONITORING SITE IDS TO ENSURE CORRECT SUBMISSION OF DWAR 32S FOR THESE SITES: SITE ID STAGE 2 COMPLIANCE MONITORING SITE ID SAMPLE TYPE 01-A SRWWTP LAB SINK DUAL (TTHM & HAA5) 02-A SOUTH RIM MAINT. BREAKROOM SINK DUAL (TTHM & HAA5) 03-A DESERT VIEW DELI SINK DUAL (TTHM & HAA5) 04-A NORTH RIM ADMIN. BREAKROOM SINK DUAL (TTHM & HAA5)


Sample Points
Point Facility Prim. Ind. Begin Date End Date Planned Sample Date/Tolerance
01-A DS001 Y 10-01-2013
02-A DS001 Y 10-01-2013
03-A DS001 Y 10-01-2013
04-A DS001 Y 10-01-2013