Hawaii Administrative Rules › Title 11 - DEPARTMENT OF HEALTH › Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS › Chapter 20 - RULES RELATING TO PUBLIC WATER SYSTEMS › Appendix F - REPORTING REQUIREMENTS FOR DISINFECTION BYPRODUCT PRECURSORS AND ENHANCED COAGULATION OR ENHANCED SOFTENING (HAR Section 11-20-45.1(e)(4))

Current through June, 2024
If you are a...
You must report...1
1. System monitoring monthly or quarterly for TOC
							 under the requirements of §
													11-20-45.1(c)(4)
							 and required to meet the enhanced coagulation or enhanced softening
							 requirements in §
													11-20-45.1(f)(2)(B) or
							 (C).
I. The number of paired (source water and treated
							 water) samples taken during the last quarter.
II. The location, date and results of each paired
							 sample and associated alkalinity taken during the last quarter.
III, For each month in the
reporting period that paired samples were taken, the
							 arithmetic average of the percent reduction of TOC for each paired sample and
							 the required TOC percent removal.
IV. Calculations for determining compliance with the
							 TOC percent removal requirements, as provided in §
													11-20-45.1(f)(3)(A).
V. Whether the system is in compliance with the
							 enhanced coagulation or enhanced softening percent removal requirements in
							 §
													11-20-45.1(f)(2)
							 for the last four quarters.
2. System monitoring monthly or quarterly for TOC
							 under the requirements of §
													11-20-45.1(c)(4)
							 and meeting one or more of the alternative compliance criteria in §
													11-20-45.1(f)(1)(B) or
							 (C).
I. The alternative compliance criterion that the
							 system is using.
II. The number of paired samples taken during the
							 last quarter.
III. The location, date and result of each paired
							 sample and associated alkalinity taken during the last quarter.
IV. The running annual arithmetic average based on
							 monthly averages (or quarterly samples) of source water TOC for systems meeting
							 a criterion in §
													11-20-45.1(f)(1)(B)(i) or
							 (iii) or of treated water TOC for systems
							 meeting the criterion in §
													11-20-45.1(f)(1)(B)(ii).
V. The running annual arithmetic average based on
							 monthly averages (or quarterly samples) of source water SUVA for systems
							 meeting the criterion in §
													11-20-45.1(f)(1)(B)(V)
							 or of treated water SUVA for systems meeting the criterion in §
													11-20-45.1(f)(1)(B)(vi).
VI. The running annual average of source water
							 alkalinity for systems meeting the criterion in §
													11-20-45.1(f)(1)(B)(iii)
							  and of treated water alkalinity for systems
							 meeting the criterion in §
													11-20-45.1(f)(1)(C)(i).
VII. The running annual average for both TTHM and
							 HAA5 for systems meeting the criterion in §
													11-20-45.(f)(1)(B)(iii) or (iv)
							 .
VIII. The running annual average of the amount of
							 magnesium hardness removal (as CaCoa in mg/L) for systems meeting the criterion
							 in §
													11-20-45.1(f)(1)(C)(ii).
IX. Whether the system is in compliance with the
							 particular alternative compliance criterion in §
													11-20-45.1(f)(1)(B) or
							 (C).
1The State may choose to perform
				  calculations and determine whether the treatment technique was met, in lieu of
				  having the system report that information.