Title 40

PART 141 SUBPART T

Subpart T - Enhanced Filtration and Disinfection - Systems Serving Fewer Than 10,000 People Source:67 FR 1839, Jan. 14, 2002, unless otherwise noted.

40:25.0.1.1.3.19.16SUBJGRP 16
General Requirements
40:25.0.1.1.3.19.16.1SECTION 141.500
   141.500 General requirements.
40:25.0.1.1.3.19.16.2SECTION 141.501
   141.501 Who is subject to the requirements of subpart T
40:25.0.1.1.3.19.16.3SECTION 141.502
   141.502 When must my system comply with these requirements
40:25.0.1.1.3.19.16.4SECTION 141.503
   141.503 What does subpart T require
40:25.0.1.1.3.19.17SUBJGRP 17
Finished Water Reservoirs
40:25.0.1.1.3.19.17.5SECTION 141.510
   141.510 Is my system subject to the new finished water reservoir requirements
40:25.0.1.1.3.19.17.6SECTION 141.511
   141.511 What is required of new finished water reservoirs
40:25.0.1.1.3.19.18SUBJGRP 18
Additional Watershed Control Requirements for Unfiltered Systems
40:25.0.1.1.3.19.18.7SECTION 141.520
   141.520 Is my system subject to the updated watershed control requirements
40:25.0.1.1.3.19.18.8SECTION 141.521
   141.521 What updated watershed control requirements must my unfiltered system implement to continue to avoid filtration
40:25.0.1.1.3.19.18.9SECTION 141.522
   141.522 How does the State determine whether my system's watershed control requirements are adequate
40:25.0.1.1.3.19.19SUBJGRP 19
Disinfection Profile
40:25.0.1.1.3.19.19.10SECTION 141.530
   141.530 What is a disinfection profile and who must develop one
40:25.0.1.1.3.19.19.11SECTION 141.531
   141.531 What criteria must a State use to determine that a profile is unnecessary
40:25.0.1.1.3.19.19.12SECTION 141.532
   141.532 How does my system develop a disinfection profile and when must it begin
40:25.0.1.1.3.19.19.13SECTION 141.533
   141.533 What data must my system collect to calculate a disinfection profile
40:25.0.1.1.3.19.19.14SECTION 141.534
   141.534 How does my system use this data to calculate an inactivation ratio
40:25.0.1.1.3.19.19.15SECTION 141.535
   141.535 What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection
40:25.0.1.1.3.19.19.16SECTION 141.536
   141.536 My system has developed an inactivation ratio; what must we do now
40:25.0.1.1.3.19.20SUBJGRP 20
Disinfection Benchmark
40:25.0.1.1.3.19.20.17SECTION 141.540
   141.540 Who has to develop a disinfection benchmark
40:25.0.1.1.3.19.20.18SECTION 141.541
   141.541 What are significant changes to disinfection practice
40:25.0.1.1.3.19.20.19SECTION 141.542
   141.542 What must my system do if we are considering a significant change to disinfection practices
40:25.0.1.1.3.19.20.20SECTION 141.543
   141.543 How is the disinfection benchmark calculated
40:25.0.1.1.3.19.20.21SECTION 141.544
   141.544 What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection
40:25.0.1.1.3.19.21SUBJGRP 21
Combined Filter Effluent Requirements
40:25.0.1.1.3.19.21.22SECTION 141.550
   141.550 Is my system required to meet subpart T combined filter effluent turbidity limits
40:25.0.1.1.3.19.21.23SECTION 141.551
   141.551 What strengthened combined filter effluent turbidity limits must my system meet
40:25.0.1.1.3.19.21.24SECTION 141.552
   141.552 My system consists of “alternative filtration” and is required to conduct a demonstration - what is required of my system and how does the State establish my turbidity limits
40:25.0.1.1.3.19.21.25SECTION 141.553
   141.553 My system practices lime softening - is there any special provision regarding my combined filter effluent
40:25.0.1.1.3.19.22SUBJGRP 22
Individual Filter Turbidity Requirements
40:25.0.1.1.3.19.22.26SECTION 141.560
   141.560 Is my system subject to individual filter turbidity requirements
40:25.0.1.1.3.19.22.27SECTION 141.561
   141.561 What happens if my system's turbidity monitoring equipment fails
40:25.0.1.1.3.19.22.28SECTION 141.562
   141.562 My system only has two or fewer filters - is there any special provision regarding individual filter turbidity monitoring
40:25.0.1.1.3.19.22.29SECTION 141.563
   141.563 What follow-up action is my system required to take based on continuous turbidity monitoring
40:25.0.1.1.3.19.22.30SECTION 141.564
   141.564 My system practices lime softening - is there any special provision regarding my individual filter turbidity monitoring
40:25.0.1.1.3.19.23SUBJGRP 23
Reporting and Recordkeeping Requirements
40:25.0.1.1.3.19.23.31SECTION 141.570
   141.570 What does subpart T require that my system report to the State
40:25.0.1.1.3.19.23.32SECTION 141.571
   141.571 What records does subpart T require my system to keep