Although routine testing is not required, an owner shall ensure that the water in a public pool or spa:

1. A. Has a coliform bacteria level of less than 1 coliform per milliliter; and
2. B. Is free of pathogenic organisms.

Authority: Health-General Article, §§2-102, 2-104, 18-102, and 20-303, Annotated Code of Maryland, and 15 U.S.C. §8003

Effective date: February 10, 1997 (24:3 Md. R. 187)

Chapter revised as an emergency provision effective July 1, 1999 (26:16 Md. R. 1238); amended permanently effective December 13, 1999 (26:25 Md. R. 1898)

Regulation .01A amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .02 amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .03 amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521)

Regulation .03A amended effective March 20, 2000 (27:5 Md. R. 584); December 19, 2005 (32:25 Md. R. 1942)

Regulation .04 amended as an emergency provision effective December 19, 2008 (36:4 Md. R. 345); amended permanently effective June 15, 2009 (36:12 Md. R. 837)

Regulation .04A, B amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .05B amended effective March 20, 2000 (27:5 Md. R. 584); December 19, 2005 (32:25 Md. R. 1942)

Regulation .05B amended as an emergency provision effective December 19, 2008 (36:4 Md. R. 345); amended permanently effective June 15, 2009 (36:12 Md. R. 837)

Regulation .05B amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521)

Regulation .05B amended effective November 2, 2020 (47:10 Md. R. 517); October 1, 2022 (49:12 Md. R. 640)

Regulation .06 amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521); November 2, 2020 (47:10 Md. R. 517)

Regulation .06-1 adopted effective November 2, 2020 (47:10 Md. R. 517)

Regulation .07 repealed and new Regulation .07 adopted effective November 2, 2020 (47:10 Md. R. 517)

Regulation .08 amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521)

Regulation .08 amended effective November 2, 2020 (47:10 Md. R. 517)

Regulation .09 amended effective November 2, 2020 (47:10 Md. R. 517)

Regulation .09C amended effective March 20, 2000 (27:5 Md. R. 584); December 19, 2005 (32:25 Md. R. 1942)

Regulation .10 amended effective November 2, 2020 (47:10 Md. R. 517)

Regulation .11C adopted effective November 2, 2020 (47:10 Md. R. 517)

Regulation .12B amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .13C amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .14A amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .15A amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .16C, D amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .17C, D amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .18A amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .21 amended effective October 1, 2022 (49:12 Md. R. 640)

Regulation .21B amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .22A amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .25B amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .25C amended effective March 20, 2000 (27:5 Md. R. 584)

Regulation .25G adopted effective November 2, 2020 (47:10 Md. R. 517)

Regulation .26 amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .27 amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .27F amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521)

Regulation .28 amended effective March 20, 2000 (27:5 Md. R. 584); December 19, 2005 (32:25 Md. R. 1942)

Regulation .28 amended as an emergency provision effective December 19, 2008 (36:4 Md. R. 345); amended permanently effective June 15, 2009 (36:12 Md. R. 837)

Regulation .28F, G amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521)

Regulation .28H amended effective November 2, 2020 (47:10 Md. R. 517)

Regulation .35A amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .40 amended effective March 20, 2000 (27:5 Md. R. 584); December 19, 2005 (32:25 Md. R. 1942)

Regulation .41B amended effective December 19, 2005 (32:25 Md. R. 1942)

Regulation .43 amended effective March 20, 2000 (27:5 Md. R. 584)

Regulation .43B amended effective November 2, 2020 (47:10 Md. R. 517)

Regulation .46 amended effective March 20, 2000 (27:5 Md. R. 584)

Regulation .53A amended as an emergency provision effective January 3, 2014 (41:2 Md. R. 88); amended permanently effective May 12, 2014 (41:9 Md. R. 521)

Regulation .55 adopted effective November 2, 2020 (47:10 Md. R. 517)