Health Risk Limit Proposed Rules Amendments, 2018

Transcription

1 Health Risk Limit Proposed Rules Amendments, 2018 REVISOR S ID NUMBER 4396 NARRATIVE DESCRIPTION Overview The following tables provide a description of the proposed changes to the Health Risk Limit (HRL) Rules for The HRL Rules list concentrations of a contaminant in groundwater that are expected to pose little to no risk when the water is consumed for the given time period. This document does not represent a certified copy of the proposed rules. This document is provided only as an alternative way to access information provided in the certified copy of the proposed HRL rules. A scan of the certified copy of the proposed rules can be found at Minnesota Department of Health Proposed Rules Relating to Health Risk Limits If you require access to the HRL rules in a different format, please contact the Health Risk Assessment unit at Abbreviations: (The terms below are further defined in the Statement of Need and Reasonableness (PDF) ) ADAF = Age-Dependent Adjustment Factor = Lifetime Adjustment Factor HRL = Health Risk Limit NA = Not Applicable ND = Not Derived RfD = Reference Dose RSC = Relative Source Contribution SF = Slope Factor Subp - Subpart

2 Minnesota Rules Part Table of Health Risk Limits Subpart 1. Current statement: Generally. This part contains the table of the health risk limits. For each substance of chemicals listed in a subpart, the information required by part shall be specified in the manner required by this subpart. Proposed revision: Generally. This part contains the table of the health risk limits. Remove the sentence. For each substance of chemicals listed in a subpart, the information required by part shall be specified in the manner required by this subpart. Minnesota Rules , subparts 2, 45, 51, 53, 75 Subpart CAS RN RfD* (milligrams per kilogram per day) Slope factor* (the inverse of milligrams per kilogram per day) Health Risk Limit (micrograms per liter) Current subpart 2: Acenaphthene Proposed subpart 2: Acenaphthene Current subpart 45: 2,4- Dichlorophenoxyacetic acid (2,4-D) Proposed subpart 45: 2,4- Dichlorophenoxyacetic acid (2,4-D) Current subpart 51: S- Ethyl dipropylthiocarbamate (EPTC) Proposed subpart 51: S-Ethyl dipropylthiocarbamate (EPTC) Repeal Repeal Repeal Repeal Repeal Repeal Repeal Repeal Repeal Repeal Repeal Repeal 2

3 Subpart CAS RN RfD* (milligrams per kilogram per day) Slope factor* (the inverse of milligrams per kilogram per day) Health Risk Limit (micrograms per liter) Current subpart 53: Fluoranthene Proposed subpart 53: Fluoranthene Current subpart 75: Pyrene Proposed subpart 75: Pyrene Repeal Repeal Repeal Repeal Repeal Repeal Repeal Repeal Minnesota Rules Part Health Risk Limits Table Add: Subp 2a Acenaphthene. CAS number: Year Adopted: 2018 Volatility: Moderate Add the following table: HRL (µg/l) ND ND NA RSC

4 Endpoints adrenal, hepatic (liver) adrenal, hepatic (liver) Renumber: Subp 2a to Subp 2b. Acetaminophen Change: Subp 3. Acetochlor as described below in the table. Changes preceded by the words From, Add, or Delete. CAS number: Change Year Adopted: From: 2009 To: 2018 HRL (µg/l) From: 40 To: ND From: 40 To: 30 From: 40(2) To: 30 From: 9 To: 20 NA RfD (mg/kgday) From: To: From: To: From: (2) To: From: To: RSC From: 0.5 To: 0.5 From: (2) To: From: To: From: To: From: (2) To: From: To: Endpoints From: developmental To: add hepatic (liver), thyroid (E) Delete: developmental Add: hepatic (liver), hepatic (liver), male 4

5 male, nervous, renal (kidney), nervous, renal (kidney), respiratory Change Subp 3a. Acetochlor ESA as described below, preceded by the words From:, To:,, Add, or Retain. CAS number: Change Year Adopted: From: 2011 to 2018 HRL (µg/l) ND From: 600 To: 500 From: 600 To: NA From: 0.37 To: 0.29 From: 0.23 To: 0.19 From: To: RSC From: To: From: To: From: To: Endpoints thyroid (E) Add: male Retain: thyroid (E) Add: male Retain: thyroid (E) 5

6 Change Subp 3b. Acetochlor OXA as described below, preceded by the words From or To. CAS number: Change Year Adopted: From: 2011 to 2018 HRL (µg/l) ND From: 200 To: 100 From: 200 To: 100 (2) From: 100 To: 90 NA From: 0.12 To: From: To: (2) From: To: RSC 0.5 From: 0.2 to (2) 0.2 From: To: From: To: (2) From: To: Endpoints thyroid (E) thyroid (E) thyroid (E) Change Subp 4. Alachlor as described below, preceded by the words From, To, Add, or Retain. CAS number: Change Year Adopted: From: 2009 to 2018 HRL (µg/l) ND From: 200 To: 100 From: 30 To: 60 From: 5 To: 9 NA 6

7 From: 0.1 To: From: 0.01 To: From: To: RSC From: To: From: To: From: To: Endpoints Add developmental Retain renal (kidney) Retain hematological (blood),, Add renal (kidney) Retain hematological (blood),, Add renal (kidney) Change Subp 7. Chloroform as described below, preceded by the words From, To, Add, or Remove. CAS number: Change Year Adopted: From: 2009 To: 2018 Volatility: High HRL (µg/l) ND From: 30 To: 20 From: 30 To: 20 (2) From: 30 To: 20 (2) NA From: 0.05 To: (2) (2) RSC 0.2 (2) (2) 7

8 From: To: (2) (2) Endpoints,,, Remove male,, Remove male Add Subpart 7a Clothianidin. CAS number: , Year Adopted: 2018 Add the following table: HRL (µg/l) ND (2) 200 (2) NA (2) (2) RSC 0.5 (2) (2) 8

9 0.285 (2) (2) Endpoints developmental developmental developmental Change Subp 8. Cyanazine as described below, preceded by the words From, To, Add, and Retain. CAS number: Change Year Adopted: From 2009 to 2018 HRL (µg/l) From: 2 To: 3 From: 2 To: 3 From: 2 To: 3 1 NA RfD (mg/kgday) From: To: From: To: From: To: From: To: RSC From: To: From: To: From: To: From: To: Endpoints Add female Add female Add female, Retain, renal (kidney) None 9

10 Change Subp 9. cis 1,2-Dichloroethylene as described below, preceded by the word From, To, Add, and Retain. CAS number: Change Year Adopted: from 2009 to 2018 Volatility: High HRL (µg/l) ND From: 70 To: 20 From: 70 (2) To: 10 From: 50 To: 6 NA From: To: From: (2) To: From: To: RSC 0.2 From: (2) To: From: To: From: (2) To: From: To: Endpoints Remove hematological (blood), Add hepatic (liver) Remove hematological (blood), Add renal (kidney) Remove hematological (blood), Add renal (kidney) Add Subp 10a. 2,4-Dichlorophenoxyacetic acid (2,4-D) CAS number: Change Year Adopted: 2018 Add the following table: 10

11 HRL (µg/l) ND (2) 30 (2) NA (2) (2) RSC 0.2 (2) (2) (2) (2) Endpoints adrenal, thyroid (E) adrenal, thyroid (E) adrenal, thyroid (E) Change Subp 11.Dieldrin as described below, preceded by the words From, To, Add, and Retain. CAS number: Change Year Adopted: From: 2009 To: 2018 HRL (µg/l) From: 0.2 To: ND (2) RfD (mg/kgday) From: To: From: To: (2) From: To: RSC From: 0.5 To: 0.5 (2)

12 mg/kgday) Intake Rate (L/kgday) From: To: From: To: (2) From: To: From: To: Endpoints From: developmental To:, nervous, nervous Add Retain hepatic (liver), Add, Retain nervous cancer Add Subp 11f. Dinoseb CAS number: Change Year Adopted: 2018 Volatility: Moderate Add the following table: HRL (µg/l) ND 8 8 (2) 8(2) NA (2) (2) RSC 0.5 (2) (2) 12

13 0.285 (2) (2) Endpoints developmental developmental developmental Renumber Subp 11f to Subp 11g. 1,4-Dioxane. Add Subp 12b. S-Ethyl-N,N-dipropylthiocarbamate (EPTC) CAS number: Change Year Adopted: 2018 Volatility: Moderate Add the following table: HRL (µg/l) NA RSC Endpoints nervous female, nervous cardiovascular cardiovascular 13

14 Renumber Subp 12b to Subp 12c. Ethylene glycol. Add Subp 12d. Fluoranthene. CAS number: Change Year Adopted: 2018 Volatility: Low Add the following table: HRL (µg/l) ND ND NA RSC Endpoints, renal (kidney), renal (kidney) 14

15 Renumber Subp 12c to Subp 12e. Metoachlor and S-Metolachlor. Renumber Subp 12d to Subp 12f. Metoachlor ESA. Renumber Subp 12e to Subp 12g. Metoachlor OXA. Renumber Subp 12f to Subp 12h. Metribuzin. Renumber Subp 12g to Subp 12i. Naphthalene. Change Subp 14b. Perfluorobutyrate (PFBA) as described below, preceded by the word From, and To. CAS number: Change Year Adopted: From: 2011 To: 2018 HRL (µg/l) ND 7 7 (2) 7 (2) NA RfD (mg/kgday) (2) (2) RSC 0.5 (2) (2) mg/kgday) Intake Rate (L/kgday) From: To: (2) (2) Endpoints, thyroid (E), thyroid (E), thyroid (E) 15

16 Change Subp 15. Perfluorooactane sulfonate (PFOS) and salts, as described below, preceded by the words From, To, Add, or Retain. CAS number: ; ; ; ; and Change Year Adopted: From: 2009 To: 2018 HRL (µg/l) ND From: ND To: From: ND To: From: 0.3 To: NA RfD (mg/kgday) From: To: From: To: From: To: RSC From: To: 0.5 From: To: 0.5 From: 0.2 To: 0.5 mg/kgday) Intake Rate (L/kgday) From: To: * (see note below) From: To: * (see note below) From: To: * (see note below) Endpoints From: To:,, thyroid (E) From: To:,, thyroid (E) Retain, Add, Retain, thyroid (E) * 95 th percentile water intake rates (Tables 3-1 and 3-3), or upper percentile breast milk intake rates (Table 15-1), Environmental Protection Agency (EPA) Exposure Factors Handbook,

17 Change Subp 15. Perfluorooctanoic Acid (PFOA) and salts, as described below, preceded by the word From, To, Add, or Retain. CAS number: ; Add ; ; ; ; and Change Year Adopted: From: 2009 To: 2018 HRL (µg/l) ND From: ND To: From: ND To: From: ND To: NA RfD (mg/kgday) From: To: From: To: From: To: RSC From: To: 0.5 From: To: 0.5 From: 0.2 To: 0.5 mg/kgday) Intake Rate (L/kgday) From: To: * (see note below) From: To: * (see note below) From: To * (see note below) Endpoints From: To:,, renal (kidney) From: To,, renal (kidney) Retain,, Add renal (kidney) * 95 th percentile water intake rates (Tables 3-1 and 3-3), or upper percentile breast milk intake rates (Table 15-1), Environmental Protection Agency (EPA) Exposure Factors Handbook,

18 Add Subp 16a. Pyrene. HEALTH RISK LIMITS, PROPOSED RULES CAS number: Change Year Adopted: 2018 Volatility: Moderate Add the following table: HRL (µg/l) ND ND NA RSC Endpoints renal (kidney) renal (kidney) Add Subp 18a. Tetrahydrofuran. CAS number: Change Year Adopted: 2018 Volatility: Moderate Add the following table: HRL (µg/l) ND (2) 600 (2) NA 0.82 (2) (2) RSC 0.2 (2) (2) 18

19 0.285 (2) (2) Endpoints developmental developmental developmental Add Subp 18b. Thiamethoxam. CAS number: Year Adopted: 2018 Add the following table: HRL (µg/l) ND (3) NA (3) RSC (3) (3) Endpoints female, hepatic (liver) male male 19

20 Renumber Subp 18a to Subp 18c. Toluene. Renumber Subp 18b to Subp 18d. 1,2,4-Trichlorobenezene. Change Subp 19. 1,1,1-Trichloroethane as described below, preceded by the word From and To. CAS number: Change Year Adopted: From: 2009 To: 2018 Volatility: High HRL (µg/l) ND ND From: 20,000 To: 9,000 From: 9,000 To: 5,000 NA RfD (mg/kgday) From: 7 To: 3.0 From: 2 To: 1.0 RSC mg/kgday) Intake Rate (L/kgday) From: To: From: To: Endpoints, male, male 20

21 Change Subp 23. Vinyl Chloride as described below, preceded by the word From and To. CAS number: Change Year Adopted: From: 2009 To: 2018 Volatility: High HRL (µg/l) ND ND From: 80 To: RfD (mg/kgday) From: 0.03 To: From: To: RSC mg/kgday) Intake Rate (L/kgday) From: To: From: To: From: To: Endpoints cancer 1/22/2018 Minnesota Department of Health Health Risk Assessment Unit PO Box St. Paul, MN health.risk@state.mn.us 21