Ariz. Admin. Code § tit. 18, ch. 11, art. 1, app A, tbl. 4

Current through Register Vol. 30, No. 50, December 13, 2024

Table 4 - Water Quality Standards for Dissolved Chromium III

Acute Aquatic and Wildlife coldwater, warmwater and edw		Chronic Aquatic and Wildlife coldwater, warmwater and edw		Acute Aquatic and Wildlife ephemeral
Hard. mg/L	Std. µg/L	Hard. mg/L	Std. µg/L	Hard. mg/L	Std. µg/L
20	152	20	19.8	20	512
100	570	100	74.1	100	1,912
400	1,773	400	231	400	5,950
e(0.819*LN(Hardness)+3.7256)*(0.316)		e(0.819*LN(Hardness)+0.6848)*(0.86)		e(0.819*LN(Hardness)+4.9361) * (0.316)

Ariz. Admin. Code tit. 18, ch. 11, art. 1, app A, tbl. 4

Appendix A, Table 4 adopted by final rulemaking at 8 A.A.R. 1264, effective March 8, 2002 (Supp. 02-1). Appendix A, Table 4 amended by final rulemaking at 9 A.A.R. 716, effective April 8, 2003 (Supp. 03-1). Appendix A, Table 4 amended by final rulemaking at 14 A.A.R. 4708, effective January 31, 2009 (Supp. 08-4). Appendix A, Table 4 repealed; new Table 4 made by final rulemaking at 22 A.A.R. 2328, effective August 2, 2016 (Supp. 16-4). Amended by final rulemaking at 25 A.A.R. 2515, effective November 9, 2019 (Supp. 19-3).