Water: Drinking Water Standards Quick Reference Guides
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Laws & RegulationsPolicy & GuidanceSafe Drinking Water ActDrinking Water Standards - Quick Reference GuidesDrinking Water Standards - Quick Reference Guides
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- Ground Water Rule Contact Time (CT) Calculator
- The Groundwater Rule (GWR) Contact Time (CT) Calculator (3M ZIP file) is an Excel spreadsheet tool designed to help groundwater systems determine minimum virus log inactivation based on various operating parameters (e.g., flow rate, type of disinfectant, temperature, etc.). The tool may assist operators in determining whether a change in treatment precesses may benefit or adversely impact the system's ability to meet its disinfection goals.
Please ensure that macros are enabled when you use the CT Calculator
- The Groundwater Rule (GWR) Contact Time (CT) Calculator (3M ZIP file) is an Excel spreadsheet tool designed to help groundwater systems determine minimum virus log inactivation based on various operating parameters (e.g., flow rate, type of disinfectant, temperature, etc.). The tool may assist operators in determining whether a change in treatment precesses may benefit or adversely impact the system's ability to meet its disinfection goals.
- Groundwater Rule Placards
The Groundwater Rule (GWR) Monitoring Requirements Placards are an Adobe pdf tool to help systems understand monitoring and communication requirements under the GWR. The tool targets system types (i.e. CWS, NCWS, wholesale, consecutive systems) and the specific information on which GWR requirements must be met. Using the placards, it is the goal of EPA that operators of specific system types be able to udnerstand which GWR requirements must be met in the event that a total coliform-positive or fecal coliform-positive sample is identified.- GWR Consecutive with Own Source -- Triggered Monitoring PDF (1pp, 216K)
EPA 816-F-10-056
This placard is for consecutive systems that have their own source and are conducting Triggered Source Water Monitoring. - GWR Consecutive without Own Source PDF (1pp, 346K)
EPA 816-F-10-057
This placard is for consecutive systems that do not have their own source. - GWR CWS and NCWS -- Triggered Monitoring PDF (1pp, 222K)
EPA 816-F-10-058
This placard is for water systems that have their own source and do not purchase water or sell water to another water system. - GWR Wholesale -- Triggered Monitoring PDF (1pp, 181K)
EPA 816-F-10-059
This placard is for wholesale systems conducting Triggered Source Water Monitoring. - GWR System Providing 4-log -- Compliance Monitoring PDF (1pp, 171 K)
EPA 816-F-10-060 This placard is for systems that provide 4-log treatment of viruses with chemical disinfection.
- GWR Consecutive with Own Source -- Triggered Monitoring PDF (1pp, 216K)
- Groundwater Rule Quick Reference Guides
- Ground Water Rule: A Quick Reference Guide (2pp, 355K)
EPA 816-F-08-029 - Ground Water Rule Compliance Monitoring ( 2pp, 314K)
EPA 816-F-08-008 - Ground Water Rule Sample Collection and Transport ( 2pp, 514K)
EPA 816-F-08-007 - Ground Water Rule Triggered and Representative Monitoring ( 2pp, 544K)
EPA 816-F-08-004
- Ground Water Rule: A Quick Reference Guide (2pp, 355K)
- LT2 Quick Reference Guides
- LT2: A Quick Reference Guide For Schedule 1 Systems PDF (2pp, 173K)
EPA 816-F-06-005 - LT2: A Quick Reference Guide For Schedule 2 Systems PDF (2pp, 173K)
EPA 816-F-06-006 - LT2: A Quick Reference Guide For Schedule 3 Systems PDF (2pp, 173K)
EPA 816-F-06-007 - LT2: A Quick Reference Guide For Schedule 4 Systems PDF (2pp, 173K)
EPA 816-F-06-008
- LT2: A Quick Reference Guide For Schedule 1 Systems PDF (2pp, 173K)
- Stage 2 Quick Reference Guides
- Stage 2 DBPR: A Quick Reference Guide For Schedule 1 Systems PDF (2pp, 123K)
EPA 816-F-06-001 - Stage 2 DBPR: A Quick Reference Guide For Schedule 2 Systems PDF (2pp, 123K)
EPA 816-F-06-002 - Stage 2 DBPR: A Quick Reference Guide For Schedule 3 Systems PDF (2pp, 123K)
EPA 816-F-06-003 - Stage 2 DBPR: A Quick Reference Guide For Schedule 4 Systems PDF (2pp, 124K)
EPA 816-F-06-004 - Comprehensive Disinfectants and Disinfection Byproducts Rules (Stage 1 and Stage 2) Quick Reference Guide PDF 2pp, 622K)
EPA 816-F-10-080 - Stage 1 and Stage 2 Comprehensive Disinfectants and Disinfection Byproducts Rules Laboratory Quick Reference Guide PDF 2pp, 1.5M)
EPA 816-F-10-081
- Stage 2 DBPR: A Quick Reference Guide For Schedule 1 Systems PDF (2pp, 123K)
- Lead and Copper Rule: A Quick Reference Guide for Schools and Child Care Facilities that Are Regulated Under the Safe Drinking Water Act PDF (5pp, 546K)
EPA 816-F-05-030 - Variances and Exemptions: A Quick Reference Guide PDF (4pp, 311K)
EPA 816-F-04-005 - Standardized Monitoring Framework PDF (3pp, 388K)
EPA 816-F-04-010 - Lead and Copper Rule: A Quick Reference Guide PDF (2pp, 456K)
EPA 816-F-08-018 - Surface Water Treatment Rule
- Comprehensive Surface Water Treatment Rules Quick Reference Guide: Systems Using Conventional or Direct Filtration PDF (4pp, 518K)
EPA 816-F-10-074 - Comprehensive Surface Water Treatment Rules Quick Reference Guide: Systems Using Slow Sand, Diatomaceous Earth, or Alternative Filtration PDF (4pp, 429K)
EPA 816-F-10-076 - Comprehensive Surface Water Treatment Rules Quick Reference Guide: Unfiltered Systems PDF (4pp, 467K)
EPA 816-B-10-001
- Comprehensive Surface Water Treatment Rules Quick Reference Guide: Systems Using Conventional or Direct Filtration PDF (4pp, 518K)
- Consumer Confidence Report Rule: A Quick Reference Guide PDF (2pp, 227K)
EPA 816-F-09-009 - Total Coliform Rule: A Quick Reference Guide PDF (2pp, 405K)
EPA 816-F-01-035 - Radionuclides Rule: A Quick Reference Guide PDF (2pp, 576K)
EPA 816-F-01-003 - Long Term 1 Enhanced Surface Water Treatment Rule: A Quick Reference Guide PDF (2pp, 567K)
EPA 816-F-01-001 - Interim Enhanced Surface Water Rule: A Quick Reference Guide PDF (2pp, 340K)
EPA 816-F-01-011 - Filter Backwash Recycling Rule: A Quick Reference Guide PDF (2pp, 307K)
EPA 816-F-01-019 - Arsenic and Clarifications to Compliance and New Source Monitoring Rules: A Quick Reference Guide PDF (2pp, 441K)
EPA 816-F-01-004 - The Public Notification Rule: A Quick Reference Guide PDF (4pp, 352K)
EPA 816-F-09-010