| LEAD AND COPPER RULE REVISIONS | TT | Yes | Oct 17, 2024 | 910042579 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2019 | 910042516 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2019 | 910042514 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2019 | 910042494 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2019 | 910042496 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2019 | 910042498 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2019 | 910042518 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2019 | 910042500 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2019 | 910042520 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2019 | 910042446 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2019 | 910042447 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2019 | 910042448 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2019 | 910042449 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2018 | 910042444 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2018 | 910042445 |
| Lead and Copper Rule | TT | Yes | Jul 1, 2018 | 910042330 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2018 | 910042442 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2018 | 910042443 |
| Lead and Copper Rule | TT | Yes | Jun 30, 2018 | 910042330 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2018 | 910042440 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2018 | 910042441 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2018 | 910042438 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2018 | 910042439 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2017 | 910042436 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2017 | 910042437 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2017 | 910042434 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2017 | 910042435 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2017 | 910042432 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2017 | 910042433 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2017 | 910042430 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2017 | 910042431 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2016 | 910042428 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2016 | 910042429 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2016 | 910042501 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2016 | 910042427 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2016 | 910042424 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2016 | 910042425 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2016 | 910042422 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2016 | 910042423 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2015 | 910042420 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2015 | 910042421 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2015 | 910042418 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2015 | 910042419 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2015 | 910042416 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2015 | 910042417 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2015 | 910042502 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2015 | 910042521 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2014 | 910042522 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2014 | 910042413 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2014 | 910042232 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2014 | 910042231 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2014 | 910042410 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2014 | 910042411 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2014 | 910042230 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2014 | 910042408 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2014 | 910042409 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2014 | 910042229 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2014 | 910042406 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2014 | 910042407 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2013 | 910042404 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2013 | 910042405 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2013 | 910042228 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2013 | 910042400 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2013 | 910042401 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2013 | 910042227 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2013 | 910042402 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2013 | 910042403 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2013 | 910042398 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2013 | 910042399 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2012 | 910042524 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2012 | 910042536 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2012 | 910042394 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2012 | 910042395 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2012 | 910042538 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2012 | 910042526 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2012 | 910042505 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2012 | 910042528 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2011 | 910042530 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2011 | 910042507 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2011 | 910042509 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2011 | 910042532 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2011 | 910042383 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2011 | 910042387 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2011 | 910042534 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2011 | 910042511 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2010 | 910042512 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2009 | 910042373 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2009 | 910042374 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2009 | 910042379 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2009 | 910042380 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2009 | 910042377 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2009 | 910042378 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jan 1, 2009 | 910042375 |
| Combined Radium (-226 and -228) | MCL | Yes | Jan 1, 2009 | 910042376 |
| Combined Radium (-226 and -228) | MCL | Yes | Oct 1, 2008 | 910042370 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Oct 1, 2008 | 910042369 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Jul 1, 2008 | 910042367 |
| Combined Radium (-226 and -228) | MCL | Yes | Jul 1, 2008 | 910042368 |
| Gross Alpha, Excl. Radon and U | MCL | Yes | Apr 1, 2008 | 910042365 |
| Combined Radium (-226 and -228) | MCL | Yes | Apr 1, 2008 | 910042366 |