ADMINISTRATIVE BULLETIN

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1 ADMINISTRATIVE BULLETIN FOR CONTAMINATED SITES October 23, 2017 Version 5 Purpose Errata for the Stage 10 (Omnibus) Amendment to the Contaminated Sites Regulation The Stage 10 (Omnibus) amendment to the Contaminated Sites Regulation (CSR) updated over 8,500 environmental quality standards. Although every effort was made to ensure that the amended standards were accurate and correct, invariably some typographical, transcription and other errors are inevitable in such a large revision. This erratum lists currently known errors in the Stage 10 amendment. The errata will be updated and reissued throughout the year of transition as new errors are identified. It is the intention to correct all errors identified during the year of transition in a final housekeeping amendment to be made to the regulations immediately prior to the new standards coming into force on November 1, Should you identify additional errors, or suspected errors, in addition to those contained in this erratum please direct inquiries to site@gov.bc.ca. Details of Notice I. Errors related to the Stage 10 (Omnibus) amendment to the CSR CSR triggers for soil relocation Previously identified errors carried over from Errata version 2 1. (MO 26 pages: and 5) The Stage 10 (Omnibus) amendments to CSR Part 8 and the repeal of CSR Schedule 7 have inadvertently altered the requirement for CSRAs in certain scenarios. The current CSR Section 0 defines source site and receiving site for purposes of establishing 1

2 requirements for CSRAs. These provisions have the effect of not requiring CSRAs in scenarios which include: 1) soil meeting the land use standards at the source site, for relocation anywhere except to an Agricultural land use site; and 2) soil meeting the Agricultural land use standards at the source site, for relocation to an Agricultural land use site. The recent amendments to the CSR (i.e. Stage 10 Amendment coming into force on November 1, 2017) repeal CSR 0 (2) items (a), (b), (d) and (e) which had the effect of not requiring a CSRA when relocating soil from a source site to a receiving site in the case that the soil to be relocated was of equal or better quality to the standards included in Columns II and III of Schedule 7, which generally equate to land use standards and Agricultural land use standards respectively. In its place, the amendment redefined source site as a contaminated site from which soil will be relocated under a CSRA. This results in only contaminated sites being subject to CSRAs when, in fact, the requirement for CSRAs may apply to non-contaminated sites as well. It is the Ministry s intention to preserve the essence of the current CSR triggers and thresholds for CSRAs including the intent to eliminate the need for a CSRA when moving soil to a receiving site of the same or better quality and we intend to pursue amendments to this effect prior to the CSR coming into force on November 1, Previously identified errors carried over from Errata version 3 Schedule 2.1 Protected Areas 2. (MO 26 page 9) With the coming into force of the Great Bear Rainforest (Forest Management) Act and the Great Bear Rainforest Order in 2016, amendments are required to CSR Schedule 2.1 Protected Areas. The need to update CSR Schedule 2.1 to reflect the statutory creation of the Great Bear Rainforest protected area was anticipated when the CSR Stage 10 amendment was approved in October 2016, and CSR stakeholders were advised at that time of this pending change to CSR Schedule 2.1 The needed amendment to CSR Schedule 2.1 is as follows: Schedule 2.1 Protected Areas Item Column 1 Area 17 a wildlife management area Wildlife Act 18 Great Bear Rainforest Forest Management Area Column 2 Act Great Bear Rainforest (Forest Management) Act 2

3 Previously identified errors carried over from Errata version New information on the correction to CSRAs Section 55 of the Environmental Management Act (EMA) governs contaminated soil relocation. Section 55(1) states that, subject to certain exceptions, a person must not relocate contaminated soil from a contaminated site unless the person enters into a CSRA and complies with its terms and conditions. Schedule 7 has remained untouched since When the CSRA scheme was developed, there were only 5 land uses (agricultural, urban park, residential, commercial and industrial) and the triggers in section 0 and Schedule 7 focussed on the soil quality at the receiving site by setting a conservative threshold for when a CSRA would be required. The Stage 10 amendments included a re-work of Section 0(1) and repealed Schedule 7 in an effort to provide exemptions to CSRAs for relocation of soil that would qualify as not contaminated at the receiving site and to mimic, as closely as possible, the existing triggers. However, the amendments have resulted in CSRA triggers that capture some soils that would currently be exempt from a CSRA and do not capture other soils that could pose risks at receiving sites and should require a CSRA. For example: 1. AL plus (+)/ RL minus (-) soil being moved from AL site to RL site (i.e. Substance concentrations in soil to be relocated are higher than the agricultural land use standards but lower than the residential land use standards): Currently the relocation of RL- soil to a RL site would not trigger the requirement for a CSRA because the soil quality meets the concentration limits in Column II (based on RL standards) of Schedule 7. As amended in Stage 10, a CSRA would now be required because the source site is a contaminated site (substance concentrations exceed AL standards) which is the trigger for a CSRA. This is the case even though the soil being relocated is of acceptable quality for use on a residential receiving site (substance concentrations are less than the RL standards). Problem: this scheme is inconsistent with the objective of exempting soil of acceptable quality for use at a receiving site from a CSRA, regardless of whether the soil quality is acceptable for use at the source site or not. 2. IL minus (-) soil being moved from IL site to RL site (i.e. Substance concentrations are less than the industrial land use standards and may or may not be higher than the residential land use standards): Currently IL- soil cannot be moved to a RL site without a CSRA. However, under the Stage 10 amendments this soil would not trigger a CSRA because the IL- soil meets the IL standard at the industrial source site and is therefore not coming from a contaminated site. 3

4 Problem: The potential relocation of soil that is not of acceptable quality for use at the receiving site is not acceptable to the ministry. 3. CL minus (-) soil being moved from CL to IL site (i.e. Substance concentrations are less than the commercial land use standards and the industrial land use standards): Currently the relocation of any soil with substance concentrations exceeding the RL standard (Column II, Schedule 7) requires a CSRA prior to movement. As amended in Stage 10, there would be no such trigger because the source site is not a contaminated site (based on commercial use). Because the soil is being moved to an IL site which is subject to less stringent standards than CL sites, the objective of not requiring a CSRA for relocation of soil that is of acceptable quality for use at the receiving site is met. No problem: This is acceptable to the ministry. The ministry is recommending that a CSRA be required for soil being relocated from a source site (regardless of whether the source site is contaminated) to a receiving site unless the soil being relocated does not contain any substance with a concentration greater than or equal to the following standards/conditions applicable to the land use at the receiving site: the lowest value of the vapour standards applicable to the land use, or other use, of the receiving site set out in Schedule 3.3, or, o a director s interim standard for vapour; the lowest value of the soil standards applicable to the land use(s) of the receiving site set out in Part 1, 2 or 3 of Schedule 3.1, or, o if the soil to be relocated exceeds a Schedule 3.1, Part 1 soil to groundwater protective standard (this includes those site-specific factors in Schedule 3.1 Part 1 titled: groundwater used for drinking water, groundwater flow to surface water used by aquatic life, groundwater used for livestock watering, groundwater used for irrigation), but the concentrations resulting from a leachate test performed in accordance with a director s protocol do not exceed the applicable Schedule 3.2 standards for the receiving site, or, o if the soil to be relocated exceeds a Schedule 3.1, Part 1 soil to groundwater protective standard, but a site specific soil standard protective of groundwater, derived in accordance with a director s protocol, is not exceeded, or, o a director s interim standard for soil, or, o the background concentration in the soil of the receiving site, determined in accordance with a director s protocol; the risk based standards set out in section 18, or section 18.1 if a receiving site is a wide area site, or, o a background risk for the receiving site, as set out in section 18 (5), or 18.1 (5.1) if the receiving site is a wide area site.

5 This recommended correction is intended to be an interim solution while the soil relocation intentions paper is finalized, providing a proposed revision to the comprehensive soil relocation scheme. Newly identified errors for Errata version 5 Additional detail related to Line 18 of CSR Schedule 2.1 referencing the Great Bear Rainforest Management Area is needed. The schedule will be modified as follows: Schedule 2.1 Protected Areas Item Column 1 Area 17 a wildlife management area Wildlife Act 18 Great Bear Rainforest Forest Management Area - areas of Class 1 and Class 2 Coast Grizzly Bear Habitat and Important Fisheries Watersheds within the extent of the Great Bear Rainforest CSR Schedule 3.1 Part 1 Matrix Numerical Soil Standards Column 2 Act Great Bear Rainforest (Forest Management) Act Previously identified errors carried over from Errata version 1 and 2 1. (MO 26 page 20) The CSR matrix for chromium contains transcription errors for the Agricultural land use: Livestock ingesting soil and fodder and Major microbial functional impairment, soil standards. A corrected matrix for chromium is provided in Appendix (MO 26 page 32) The CSR matrix for lead contains a number of errors related to Provincial 95 th percentile background soil adjustment of the toxicologically derived matrix soil quality standards for lead. A corrected matrix for lead is provided in Appendix (MO 26 page 11) The CSR matrix for arsenic contains a transcription error for the Human Health Protection - Intake of contaminated soil, Industrial land use standard ( ug/g). The correct arsenic Industrial land use, Human Health - Intake of contaminated soil standard is 00 ug/g.. (MO 26 page 57) The CSR matrix for thallium contains several transcription errors for the Environmental Protection Toxicity to soil invertebrates and plants, land use standards. The correct 5

6 thallium Environmental Protection Toxicity to soil invertebrates and plants standards are as follows: Environmental Protection - Toxicity to soil invertebrate and plants soil standard (ug/g) Land Use Incorrect Standard Correct Standard Natural (WL N ) High Density (RL HD ) Commercial (CL) Industrial (IL) Previously identified errors carried over from Errata version 3 5. (MO 26 pages: 10, 1, 27, 31, 38, 0,, 6, 8, 60, 85, 107, 132 and 133) At the time of approval of the CSR Stage 10 (Omnibus) amendment, the title of the revised 2016 CSR Protocol C28 had not yet been finalized. As a result, various footnotes in CSR Schedule 3.1, Part 1 and CSR Schedules 3.1, Parts 2 and 3 refer to Protocol C28 as the 2016 Updated CSST Protocol. The title of the revised standards derivation protocol has now been finalized as CSR Protocol 28, Standards Derivation Methods and footnotes pertinent to this change have been updated for the following substances: CSR Stage 10 (Omnibus) Schedule Schedule 3.1, Part 1 Schedule 3.1, Part 2 Schedule 3.1, Part 3 Schedule 3.2 Substance anthracene benzo(a)pyrene dichlorodiphenyltrichloroethane, total [DDT] fluoranthene methanol naphthalene nonylphenol and nonylphenol ethoxylates polychlorinated biphenyls, total [PCBs] polychlorinated dioxins and furans, total [PCDDs and PCDFs] uranium various substances various substances various substances See Appendix 7 for further details. 6. (MO 26 page: 13) The CSR matrix for benzene contains calculation errors for some Environmental Protection, Toxicity to soil invertebrates and plants standards. These errors resulted in 6

7 consequence of an incorrect interpretation of the associated soil invertebrate and plant toxicity data used to set the standards. The corrected standards are as follows: Corrected, Environmental Protection Toxicity to soil invertebrates and plants, Standards for Benzene Land Use Incorrect Soil Standard Correct Soil Standard (ug/g) (ug/g) (Natural) (WL N ) (Reverted) (WL R ) Agricultural (AL) Urban Park (PL) (Low Density) (RL LD ) (High Density) (RL HD ) Commercial (CL) Industrial (IL) 7. (MO 26 pages: 13, 29, 30, 38, 0, 9, 52, 58 and 62) The CSR matrices for: benzene, ethylbenzene, ethylene glycol, methanol, naphthalene, pentachlorophenol, phenol, toluene and xylenes contain calculation errors related to the derivation of some Environmental Protection, Soil to groundwater protective soil standards. Specifically, an overly conservative biodegradation decay term adjustment was incorrectly applied in calculating some of the soil to groundwater protective standards for the above substances which are subject to biodegradation. This error has been corrected, for the above affected substances by deleting the decay term adjustment and re-calculating the impacted soil to groundwater protective standards. Corrected soils to groundwater protective soil standards for the affected substances are as follows: CAS Soil to Groundwater Protective Sitespecific Soil ph Incorrect Correct Substance Number Factor Standard Standard benzene groundwater used for drinking water groundwater flow to surface water used by aquatic life - Marine ethylbenzene groundwater used for drinking water groundwater flow to surface water used by aquatic life - Freshwater ethylene glycol groundwater flow to surface water used by aquatic life 1 methanol groundwater used for drinking water naphthalene groundwater flow to surface water used by aquatic life

8 pentachlorophenol groundwater used for drinking water < < < 7.0 > 7.0 groundwater flow to surface water used by < 5.5 aquatic life < < groundwater used for livestock watering < < < > phenol groundwater used for drinking water toluene groundwater used for drinking water groundwater flow to surface water used by aquatic life - Freshwater groundwater flow to surface water used by 100 aquatic life - Marine xylenes, total groundwater used for drinking water groundwater flow to surface water used by aquatic life 1 1 Standard applies to both freshwater and marine aquatic life. 8. (MO 26 page 17) The CSR Schedule 3.1, Part 1 Environmental Protection Toxicity to soil invertebrates and plants matrix soil standards for cadmium (CAS Number ) were incorrectly calculated based on quintile, as opposed to correct quartile, data. The correct Schedule 3.1, Part 1 Toxicity to soil invertebrates and plants matrix standards for cadmium are: Corrected, Environmental Protection Toxicity to soil invertebrates and plants, Standards for Cadmium Land Use Incorrect Soil Standard Correct Soil Standard (ug/g) (ug/g) (Natural) (WL N ) (Reverted) (WL R ) Agricultural (AL) Urban Park (PL) (Low Density) (RL LD ) (High Density) (RL HD ) Commercial (CL) Industrial (IL)

9 9. (MO 26 page 19) CSR Schedule 3.1 Part 1 contains an error of omission related to the name for CHLORIDE. Specifically the word ION was inadvertently omitted from the name of the substance. The correct name of the substance is CHLORIDE ION. 10. (MO 26 page 19) CSR Schedule 3.1 Part 1 contains a nomenclature error related to the CAS number for CHLORIDE ION ( ). The correct CAS number for CHLORIDE ION is (MO 26 page 22 and Page 53) The CSR matrices for cobalt and selenium contain transcription errors in the Note column of the matrices, related to footnotes referenced for: Substance Affected matrix soil standard Incorrect Note Corrected Note Cobalt Human Health Protection Groundwater used for drinking water 5 Environmental Protection Major microbial functional impairment 5 6 Environmental Protection Groundwater flow to surface water used by aquatic 6 5 life Environmental Protection Groundwater used for irrigation 6 5 Selenium Environmental Protection Groundwater used for irrigation,6 6 Corrected matrices for cobalt and selenium are provided in Appendix (MO 26 page 23/2, page 33/3 and page 63/6) The CSR matrices for: copper, lead and zinc contain calculation errors related to the derivation of the Environmental Protection, Groundwater flow to surface water used by aquatic life (freshwater) soil standards. Specifically, incorrect hardness range dependent aquatic Life (freshwater) water quality standards for the substances were used to backcalculate the corresponding hardness and ph dependent soil standards to protect Groundwater flow to surface water used by aquatic life (freshwater). Appendix 9 provides corrected matrices for copper, lead and zinc. 13. (MO 26 pages 23/2 and pages 35/36) The CSR matrices for copper and manganese contain soil background adjustment errors. Specifically, the following soil standards were incorrectly adjusted for the 2016 reference Provincial background soil concentrations for the substances: 9

10 Substance Affected matrix soil standard Incorrect standard Corrected standard Copper Environmental Protection Groundwater flow to surface water used by aquatic life freshwater ph < Environmental Protection Groundwater flow to surface water used by aquatic life marine ph < Environmental Protection Groundwater used for livestock watering - ph < Environmental Protection Groundwater used for irrigation - ph < Manganese Human Health Protection Groundwater used for drinking water Environmental Protection Toxicity to soil invertebrates and plants Environmental Protection Groundwater used for irrigation Appendix 10 provides corrected matrices for copper and manganese. 1. (MO 26 pages 5 52) Matrices number 26, 27, 28 and 29 were incorrectly sequentially numbered based on their alphabetic acronym abbreviations, rather than on their full chemical substance names. The correct sequential alphabetic numbering of matrices for those substances whose full chemical names begins with the letter P is as follows: Incorrect Title MATRIX 26 NUMERICAL SOIL STANDARDS 1,2 POLYCHLORINATED BIPHENYLS, TOTAL [PCBS] (CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 27 NUMERICAL SOIL STANDARDS 1,2 POLYCHLORINATED DIOXINS AND FURANS, TOTAL [PCCDS AND PCDFS] CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 28 NUMERICAL SOIL STANDARDS 1 PENTACHLOROPHENOL [PCP] (CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 29 NUMERICAL SOIL STANDARDS 1 PERFLUOROOCTANE SULFONATE [PFOS] (CHEMICAL ABSTRACT SERVICE NUMBER ) Correct Title MATRIX 26 NUMERICAL SOIL STANDARDS 1 PENTACHLOROPHENOL [PCP] (CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 27 NUMERICAL SOIL STANDARDS 1 PERFLUOROOCTANE SULFONATE [PFOS] (CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 28 NUMERICAL SOIL STANDARDS 1 PHENOL (CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 29 NUMERICAL SOIL STANDARDS 1,2 POLYCHLORINATED BIPHENYLS, TOTAL [PCBS] (CHEMICAL ABSTRACT SERVICE NUMBER ) 10

11 MATRIX 30 NUMERICAL SOIL STANDARDS 1 PHENOL (CHEMICAL ABSTRACT SERVICE NUMBER ) MATRIX 30 NUMERICAL SOIL STANDARDS 1,2 POLYCHLORINATED DIOXINS AND FURANS, TOTAL [PCCDS AND PCDFS] CHEMICAL ABSTRACT SERVICE NUMBER ) 15. (MO 26 page 7) The CSR Schedule 3.1 matrix for Polychlorinated Dioxins and Furans, Total contains a common error of omission for the Groundwater used for irrigation; Urban Park (PL), Low Density (RL LD ) and High Density (RL HD ), soil standards. Specifically, the NS No standard designation was inadvertently omitted for this particular site-specific factor for the three land uses. 16. (MO 26 page 7) A typographical error in the abbreviation for the substance exists in the CSR Schedule 3.1 matrix for POLYCHLORINATED DIOXINS AND FURANS, TOTAL [PCCDs AND [PCDFs]. The correct abbreviation for the substance is POLYCHLORINATED DIOXINS AND FURANS, TOTAL [PCDDs and [PCDFs]. 17. (MO 26 page 5) CSR Schedule 3.1 Part 1 contains an error of omission related to the name for SODIUM. Specifically the word ION was inadvertently omitted from the name of the substance. The correct name of the substance is SODIUM ION. 18. (MO 26 page 5) CSR Schedule 3.1 Part 1 contains a nomenclature error related to the CAS number for SODIUM ION ( ). The correct CAS number for SODIUM ION is (MO 26 page 57) Incorrect Human Health Protection Intake of contaminated soil standards for thallium (CSA Number ) were included in the CSR Schedule 3.1, Part 1 matrix derived for the substance. The toxicity reference value (TRV) used by the US EPA to calculate the soil and Industrial soil regional screening levels (RSLs) for thallium, which were subsequently adjusted and modified (in accordance with the draft 2016 CSR Protocol 28 Standards Derivation Methods ) for use in deriving Human Health Protection Intake of contaminated soil standards for thallium, was qualified and acknowledged by the US EPA as being of insufficient scientific credibility for use as a RSL. Furthermore, due to the lack of scientific rigor associated with the TRV used by the US EPA to derive the and Industrial soil screening RSLs for thallium; these US EPA soil screening RSLs should not have been adjusted, modified and adopted by the ministry in deriving Human Health Protection Intake of contaminated soil standards for use in CSR Schedule 3.1, Part 1. 11

12 These errors have been corrected by rescinding all of the CSR Schedule 3.1, Part 1 Human Health Protection Intake of contaminated soil matrix standards for thallium. Furthermore, since refutation of the Human Health Protection Intake of contaminated soil matrix standards means that the draft 2016 CSR Protocol 28 Standards Derivation Methods pre-requisite that both mandatorily applicable types of matrix standards (i.e. 1. Human Health Protection Intake of contaminated soil and 2. Environmental Protection Toxicity to soil invertebrates and plants) be calculable in order to derive a matrix of soil standards for any substance, cannot be met. As a result, the Schedule 3.1 Part 1 Matrix 35 Thallium has also been retracted in its entirety and the remaining matrices which followed the former Matrix 35 Thallium in Schedule 3.1, Part 1 have been renumbered as follows: Substance CAS Number Former Matrix Number New Matrix Number Thallium Toluene Trichloroethylene Uranium Vanadium Xylenes, Total Zinc Newly identified errors for Errata version (MO 26 page 51) The CSR Schedule 3.1, Part 1 matrix for perfluorooctane sulfonate [PFOS] footnote contains an error of omission related to the listed Schedule 2 industrial or commercial purposes or activities to which the soil to protect groundwater used for drinking water and soil to protect groundwater flow to surface water used by aquatic life. Specifically, the Schedule 2 industrial or commercial purpose or activity item C3 was inadvertently omitted from footnote. The corrected footnote is as follows:. Standards apply to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as (a) item A, (b) item C3, (c) item E10, or (d) item G1. 12

13 CSR Schedule 3.1 Part 2 Generic Numerical Soil Standards to Protect Human Health Previously identified errors carried over from Errata version 1, 2 and 3 1. (MO 26 pages: 65, 76, 82 and 85) CSR Schedule 3.1 Part 2 contains a number of errors related to provincial 95 th percentile background soil adjustment of the toxicologically derived soil quality standards for the following substances: aluminium, iron, sulfur and zirconium. A corrected Schedule 3.1 Part 2 for the substances in provided in Appendix (MO 26 page 70) CSR Schedule 3.1 Part 2 contains a nomenclature error related to the abbreviation for dibromochloromethane [DCBM]. The correct abbreviation for dibromochloromethane is [DBCM]. 3. (MO 26 page 82) The previously identified CSR Schedule 3.1 Part 2 error related to the provincial 95 th percentile background soil adjustment of the toxicologically derived Agricultural land use soil quality standard for sulphur (see Errata version 1 Appendix 3 i.e ) also contains a typographical error. Specifically footnote 9 should not have been applied to the CSR Schedule 3.1 Part 2 Agricultural land use soil standard for sulphur of ug/g. In respect to this newly identified error and the previously identified error related to the Provincial 95 th percentile background soil adjustment of the toxicologically derived Agricultural land use soil quality standard for sulphur (i.e. Errata version 1, Appendix 3); the correct standard addressing both errors for sulfur is ug/g.. (MO 26 pages 65-85) CSR Schedule 3.1 Part 2 contains a number of errors in standards for carcinogenic substances resulting from a common fundamental calculation error made in deriving the standards for carcinogenic substances. Specifically, the standards for carcinogenic substances listed in Schedule 3.1 Part 2 were incorrectly calculated as a result of including a 20% Soil Allocation Factor (SAF) in the equation used to derive these standards. The recalculated, corrected standards for Schedule 3.1 Part 2 listed carcinogenic substances are provided in Appendix (MO 26 page 67) The substance bis(chloromethyl) ether (CAS Number ) was incorrectly listed in CSR Schedule 3.1 Part 2. As this substance is subject to extremely rapid hydrolysis in the environment, (i.e. half-life in water t 1/2 = 38 seconds), British Columbia Environmental Laboratory Technical Advisory Committee (BCELTAC) advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. 13

14 This error has been corrected by deleting bis(chloromethyl) ether (CAS Number ) and the substance s associated soil quality standards from CSR Schedule 3.1 Part 2 (see Appendix 11). 6. (MO 26 page 69) The substance chloromethyl methyl ether (CAS Number ) was incorrectly listed in CSR Schedule 3.1 Part 2. As this substance spontaneously hydrolyses in the environment, (i.e. half-life in water t 1/2 = 1 second), BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting chloromethyl methyl ether (CAS Number ) and the substance s associated soil quality standards from CSR Schedule 3.1 Part 2 (see Appendix 11). 7. (MO 26 page 71) CSR Schedule 3.1 Part 2 contains a typographical error for dichlorodifluoro-methane. Specifically, the name of the substance is not hyphenated. The correct name of the substance is dichlorodifluoromethane. Appendix 11 includes this change. 8. (MO 26 page 72) The CSR Schedule 3.1 Part 2 soil standards for dimethylbenz(a)anthracene, 7,12- were not adjusted for a BCELTAC recommended industry detection limit for the substance, as at the time of approval of the Stage 10 (Omnibus) amendment; no BCELTAC detection limit was available for the substance. BCELTAC has now determined a recommended industry detection limit for the substance and consequently the Stage 10 (Omnibus) standards have been adjusted for the BCELTAC detection limit for the substance. The corrected standards for dimethylbenz(a)anthracene, 7,12- are provided in Appendix (MO 26 pages 72, 75, 78, and 83) CSR Schedule 3.1 Part 2 contains transcription errors in the generic soil standards for the following substances: Substance CAS number dimethylhydrazine, 1, hexabromobenzene nitroaniline, trichloroaniline, 2,, Appendix 11 provides the corrected generic soil standards for the above substances. 1

15 10. (MO 26 page 7) CSR Schedule 3.1 Part 2 contains a nomenclature error for ethyl-p-nitrophenyl phosphonate [EPN]. The correct name of the substance is ethyl-p-nitrophenyl benzenethiophosphonate [EPN]. Appendix 11 includes this change. 11. (MO 26 page 76) The substance hydrofluoric acid (CAS Number ) was incorrectly listed in CSR Schedule 3.1 Part 2. As this substance spontaneously hydrolyses in the environment, BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting hydrofluoric acid (CAS Number ) and the substance s associated soil quality standards from CSR Schedule 3.1 Part 2 (see Appendix 11). 12. (MO 26 page 78) CSR Schedule 3.1 Part 2 contains a nomenclature error for monomethylaniline. The correct name of the substance is methylaniline, N-. Appendix 11 includes this change. 13. (MO 26 page 82) CSR Schedule 3.1 Part 2 contains an error of omission in regard to the BCELTAC recommended and standardized chemical name for sulfur (CAS Number ). Specifically the descriptor elemental was incorrectly omitted from the chemical name for sulfur. The correct name for the substance is sulfur, elemental. Appendix 11 includes this change. 1. (MO 26 page 83) As a consequence of the retraction of CSR Schedule 3.1, Part 1 Matrix 35 Thallium, the substance has been moved to, and listed as, a substance in CSR Schedule 3.1, Part 2. In accordance with 2016 CSR Protocol 28 Standards Derivation Methods, the former CSR Schedule generic soil standard of 2 12 ug/g for Agricultural land use has been added to Schedule 3.1, Part 2 (see Appendix 11). 15. (MO 26 page 85) Incorrect Human Health Protection - Generic soil standards for zirconium (CSA Number ) were included in the CSR Schedule 3.1, Part 2. The TRV used by the US EPA to calculate the soil and Industrial soil screening RSLs for zirconium; which were subsequently adjusted and modified (in accordance with the draft 2016 CSR Protocol 28 Standards Derivation Methods) for use as Human Health Protection - Generic soil standards for zirconium; was qualified and acknowledged by the US EPA as being of insufficient scientific credibility for use as a RSL. Furthermore, due to the lack of scientific rigor associated with the TRV used by the US EPA to derive the and Industrial soil screening RSLs for zirconium; these US EPA soil screening RSLs should 15

16 not have been adjusted, modified and adopted by the ministry as Human Health Protection- Generic soil standards for use in CSR Schedule 3.1, Part 2. These errors have been corrected by rescinding all of the following CSR Schedule 3.1, Part 2 Human Health Protection - Generic soil standards for zirconium. Zirconium, Human Health Protection Generic Soil Standards which were Retracted from CSR Schedule 3.1, Part 2 Land Use Deleted Zirconium standard (ug/g) in MO 26 1 Deleted Background Soil Adjusted Zirconium standard (ug/g) (Natural) (WL N ) (Reverted) (WL R ) Agricultural (AL) Urban Park (PL) (Low Density) (RL LD ) (High Density) (RL HD ) Commercial (CL) Industrial (IL) See CSR Schedule 3.1 Part 2 Generic Numerical Soil Standards to Protect Human Health, Previously identified errors carried over from Errata version 1 and 2, Item 1 above. In addition, with the refutation of all CSR Schedule 3.1, Part 2 soil standards for zirconium, the substance has been retracted as a prescribed substance from Schedule 3.1, Part 2 (see Appendix 11). Newly identified errors for Errata version (MO 26 page 66) CSR Schedule 3.1 Part 2 contains a typographical spacing error in the name for bis(2-chloroethoxy)methane. Specifically, a space is missing within the name of the substance. The correct name of the substance is bis(2-chloroethoxy) methane. Appendix 18 includes this change. Appendix 18 includes this change. 17. (MO 26 page 67) CSR Schedule 3.1 Part 2 contains a typographical spacing error in the name for 16

17 bis(2-ethylhexyl)phthalate [DEHP]. Specifically, a space is missing within the name of the substance. The correct name of the substance is bis(2-ethylhexyl) phthalate [DEHP]. Appendix 18 includes this change (see Appendix 18). 18. (MO 26 page 70) CSR Schedule 3.1, Part 2 contains a nomenclature error associated with the CAS number for dibutyltin. The toxicity associated with organtins is related to the ionic form of the substances (specifically the cation). In the case of dibutyltin the CAS number provided in Schedule 3.2 was for the dihydride. The BC Environmental Laboratory Advisory Committee has identified an appropriate CAS number for dibutyltin (cation). The correct CAS number for dibutytin is: Substance Incorrect CAS number Correct CAS number dibutyltin Appendix 18 includes this change. 19. (MO 26 page 71) CSR Schedule 3.1 Part 2 contains transcription errors in the generic soil standards for dichloroethane, 1,1- The correct standards for the substance appear in Appendix (MO 26 page 71) CSR Schedule 3.1 Part 2 contains transcription errors in the generic soil standards for dichloroethane, 1,2- The correct standards for the substance appear in Appendix (MO 26 page 71) CSR Schedule 3.1 Part 2 contains a typographical spacing error in the name for dichlorophenoxy acetic acid, 2, [2,-D]. Specifically, a space is missing between the name of the substance and the substance s abbreviation. The correct name and abbreviation of the substance is dichlorophenoxy acetic acid, 2,- [2,-D]. Appendix 18 includes this change. 22. (MO 26 page 71) CSR Schedule 3.1 Part 2 contains a typographical error in the name for dichlorophenoxy) butyric acid, 2,- [2,-DB]. Specifically, the name of the substance does not include a hyphen between dichlorophenoxy and butyric acid. The correct name of the substance is dichlorophenoxy butyric acid, 2,- [2,-DB]. Appendix 18 includes this change. 23. (MO 26 page 79) CSR Schedule 3.1 Part 2 contains a typographical error in the agricultural land use soil standard (6 00 ug/g) for norflurazon (CAS ). The correct agricultural land use soil standard for norflurazon is 600 ug/g (see Appendix 18). 17

18 2. (MO 26 page 85) Several members of the contaminated sites environmental consulting industry have commented that footnote 7 of CSR Schedule 3.1 Part 2 is insufficiently informative in regard to which standard, and in which manner, the sum of the concentrations of benz(a)anthracene, benzo(b+j)fluoranthenes, benzo(k)fluoranthene, dibenzo(a,h)anthraces and indeno(1,2,3-cd)pyrene must be compared. To clarify this issue, Schedule 3.1, Part 2 footnote 7 has been reworded as follows: 7 Standard represents a Benzo(a)Pyrene Toxicity Equivalent Quotient (BaP TEQ). Standard is set equal to the corresponding land use, Human Health Protection Intake of contaminated soil, matrix soil standard for benzo(a)pyrene divided by the the 1998 World Health Organization Benzo(a)Pyrene Toxicity Equivalent Factor (BaP TEF) for the substance. The sum of the concentrations of: benz(a)anthracene, benzo(b+j)fluoranthenes, benzo(k)fluoranthene, dibenzo(a,h)anthracene, and indeno(1,2,3-cd)pyrene in soil, multiplied by each substance s respective 1998 World Health Organization BaP TEF must not exceed the corresponding land use, Human Health Protection Intake of contaminated soil, matrix soil standard for benzo(a)pyrene. Consult a director for further advice. Appendix 18 includes this change. CSR Schedule 3.1 Part 3 Generic Numerical Soil Standards to Protect Ecological Health Previously identified errors carried over from Errata version 1, 2 and 3 1. (MO 26 page 10) CSR Schedule 3.1 Part 3 contains an error related to the Provincial 95 th percentile background soil adjustment of the toxicologically derived Agricultural land use soil quality standard for sulfur (500 µg/g). The correct Agricultural land use soil quality standard for sulphur is µg/g. The following previously identified error has been retracted. 2. (MO 26 page 89) CSR Schedule 3.1 Part 3 contains an omission error related to the boron (hot water soluble) Agricultural land use soil standard (2 ug/g). Specifically footnote should have been applied to CSR Schedule 3.1 Part 3 Agricultural land use soil standard for boron (hot water soluble). The correct standard is 2 ug/g. 2. (MO 26 page 89) The substance bis(chloromethyl) ether (CAS Number ) was incorrectly listed in CSR Schedule 3.1 Part 3. As this substance is subject to extremely rapid hydrolysis in the environment, (i.e. half-life in water t 1/2 = 38 seconds), BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. 18

19 This error has been corrected by deleting bis(chloromethyl) ether (CAS Number ) and the substance s associated soil quality standards from CSR Schedule 3.1 Part 3 (see Appendix 12). 3. (MO 26 page 91) The substance chloromethyl methyl ether (CAS Number ) was incorrectly listed in CSR Schedule 3.1 Part 3. As this substance spontaneously hydrolyses in the environment, (i.e. half-life in water t 1/2 = 1 second), BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting chloromethyl methyl ether (CAS Number ) and the substance s associated soil quality standards from CSR Schedule 3.1 Part 3 (see Appendix 12).. (MO 26 page 92) CSR Schedule 3.1 Part 3 contains a typographical error for Dibromochloromethane [DBCM}. Specifically, the first letter of the name of the substance is not capitalized. The correct name of the substance is dibromochloromethane [DBCM] (see Appendix 12). 5. (MO 26 page 98) The substance hydrofluoric acid (CAS Number ) was incorrectly listed in CSR Schedule 3.1 Part 3. As this substance spontaneously hydrolyses in the environment, BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting hydrofluoric acid (CAS Number ) and the substance s associated soil quality standards from CSR Schedule 3.1 Part 3 (see Appendix 12). 6. (MO 26 page 10) CSR Schedule 3.1 Part 3 contains an error of omission in regard to the British Columbia BCELTAC recommended and standardized chemical name for sulfur (CAS Number ). Specifically the descriptor elemental was incorrectly omitted from the chemical name for sulfur. The correct name for the substance is sulfur, elemental. Appendix 12 includes this change. 7. (MO 26 page 105 and 107) As a result of the retraction of CSR Schedule 3.1, Part 1: Matrix 35 Thallium, the substance has been moved to and listed as a substance in CSR Schedule 3.1, Part 3. The following retracted Matrix 35 Thallium Environmental Protection Toxicity to soil invertebrates and plants soil standards, which were derived in accordance with 2016 CSR 19

20 Protocol 28, Standards Derivation Methods have also been added to CSR Schedule 3.1, Part 3 (see Appendix 12). Deleted Matrix 35 Thallium, Environmental Protection Toxicity to Soil Invertebrates and Plants Soil Standards Moved to CSR Schedule 3.1, Part 3 Land Use Thallium standard (ug/g) (Natural) (WL N ) 5.5 (Reverted) (WL R ) 9 Agricultural (AL) 9 Urban Park (PL) 9 (Low Density) (RL LD ) 9 (High Density) (RL HD ) 25 Commercial (CL) 25 Industrial (IL) 25 Moving thallium to Schedule 3.1 Part 3 also necessitated a change to the schedule s footnotes. Specifically: footnote 13 (which was specific to VPHs) has been renumbered as footnote 1 and the following new footnote 13 specific to thallium has been added. 13. Standards have been derived in accordance with 2016 CSR Protocol 28, Standard Derivation Methods. 1. VPHs Volatile Petroleum Hydrocarbons in soil, as defined in 2015 British Columbia Environmental Laboratory Manual and updated from time to time. Appendix 12 includes this change. 8. (MO 26 page 107) As a result of rescinding zirconium as a prescribed substance from CSR Schedule 3.1, Part 2 and since Schedule 3.1, Part 3 provides no generic numerical soil standards to protect ecological health in respect to zirconium, the substance has also been retracted as a prescribed substance in CSR Schedule 3.1, Part 3. This change is included in Appendix 12. Newly identified errors for Errata version 5 9. (MO 26 page 88) CSR Schedule 3.1 Part 3 contains a typographical spacing error in the name for bis(2-chloroethoxy)methane. Specifically, a space is missing within the name of the substance. The correct name of the substance is bis(2-chloroethoxy) methane. Appendix 19 includes this change. 10. (MO 26 page 88) CSR Schedule 3.1 Part 3 contains a typographical spacing error in the name for 20

21 bis(2-chloro-1-methylethyl) ether. Specifically, a space is missing within the name of the substance. The correct name of the substance is bis(2-chloro-1-methylethyl) ether. (See Appendix 19). 11. (MO 26 page 92) CSR Schedule 3.1, Part 3 contains a nomenclature error associated with the CAS number for dibutyltin. The toxicity associated with organtins is related to the ionic form of the substances (specifically the cation). In the case of dibutyltin the CAS number provided in Schedule 3.2 was for the dihydride. The BC Environmental Laboratory Advisory Committee has identified an appropriate CAS number for dibutyltin (cation). The correct CAS number for dibutytin is: Substance Incorrect CAS number Correct CAS number dibutyltin Appendix 19 incorporates this change. 12. (MO 26 page 93) CSR Schedule 3.1 Part 3 contains a typographical error in the name for dichlorophenoxy) butyric acid, 2,- [2,-DB]. Specifically, the name of the substance does not include a hyphen between dichlorophenoxy and butyric acid. The correct name of the substance is dichlorophenoxy butyric acid, 2,- [2,-DB]. Appendix 19 includes this change. 13. (MO 26 page 96) The CAS number ( ) for fluoride in CSR Schedule 3.1 Part 3 is incorrect. The correct CAS number for fluoride is (see Appendix 19). 1. (MO 26 page 97) The CAS number (188-7-) for hexachlorobenzene in CSR Schedule 3.1 Part 3 is incorrect. The correct CAS number for hexachlorobenzene is (see Appendix 19). 15. (MO page 102) CSR Schedule 3.1 Part 3 contains an error of omission in regard to the British Columbia BCELTAC recommended and standardized chemical name for phenol, 2-methyl-,6- dinitro (CAS Number ). Specifically the abbreviation [DNOC] was incorrectly omitted from the chemical name for the substance. The correct name and abbreviation for the substance is phenol, 2-methyl-,6-dinitro [DNOC]. Appendix 19 includes this change. 16. (MO 26 page 105) The CAS number ( ) for trichlorobenzene, 1,3,5- in CSR Schedule 3.1 Part 3 21

22 contains a typographical error. The correct CAS number for trichlorobenzene, 1,3,5- is (see Appendix 19). CSR Schedule 3.2 Generic Numerical Water Standards Previously identified errors carried over from Errata version 2 and 3 1. (MO 26 pages 108 to 131) - Heading for Column Irrigation (IW) CSR Schedule 3.2 contains a transcription error related to footnote 3 in the heading for Column Irrigation (IW). Specifically, the heading should not include reference to footnote 3 COLUMN Irrigation 2,3 (IW) The correct heading for Column Irrigation (IW) is as follows: COLUMN Irrigation 2 (IW) 2. (MO 26 page 116) CSR Schedule 3.2 contains a typographical error related to the CAS number for diisopropanolamine [DIPA] ( ). The correct CAS number for diisopropanolamine [DIPA] is (MO 26 page 125) CSR Schedule 3.2 contains an omission error related to perfluorobutane sulfonate [PFBS]. Specifically footnote 57 should have been applied to perfluorobutane sulfonate [PFBS] as was the case for the other two listed perfluorocarbons [PFOS] and [PFOA]. The correct listing for [PFBS] should read: perfluorobutane sulfonate [PFBS] 57. (MO 26 page 128) CSR Schedule 3.2 contains a nomenclature error related to the CAS number for sulfide ( ). The correct CAS number for sulfide (as H2S) is (MO 26 page 132) CSR Schedule 3.2 footnote 2 contains an error of omission. Specifically footnote 2(e) was inadvertently omitted. The correct missing footnote 2(e) reads as follows: 2(e) Standards for irrigation water apply to irrigation of all soil types, unless otherwise indicated. 22

23 6. (MO 26 page 133) CSR Schedule 3.2 footnote contains a typographical error related to the cited footnote number in the last sentence of footnote (i.e. should be removed and replaced with 3). The correct footnote should read as follows: Standards apply to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as item H11 or H20, but only if the site was used for that purpose or activity in conjunction with, or as a result of, the site also being used for at least one of the purposes or activities set out in Note (MO 26 page 13) CSR Schedule 3.2 footnote 7 contains a typographical error related to the cited footnote number in the last sentence of footnote 7 (i.e. 7 should be removed and replaced with 6). The correct footnote 7 should read as follows: 7 Standards apply to a site used for an industrial or commercial purpose or activity set out in Schedule 2 as item H11 or H20, but only if the site was used for that purpose or activity in conjunction with, or as a result of, the site also being used for at least one of the purposes or activities set out in Note (MO 26 pages: 108, 110, 111, 112, 11, 115, 117, 118, 119, 121, 122,12,129 and 130) The CSR Schedule 3.2 water standards for some substances were not adjusted for a BCELTAC recommended industry standard detection limit for the substances, as at the time of approval of the Stage 10 (Omnibus) amendment; no BCELTAC detection limits were available for the substance. BCELTAC has now determined recommended industry detection limits for the substances and consequently the corresponding Stage 10 (Omnibus) water standards have been adjusted for the BCELTAC detection limits for the following substances: Substance CAS Number acrylonitrile benzidine benzotrichloride bromo-2-chloroethane, butadiene, 1, chlorobenzotrichloride, crotonaldehyde, trans dibenz(a,h)anthracene dibromo-3-chloropropane, 1, dibromoethane, 1, dimethylbenz(a)anthracene, 7, ethyleneimine

24 methacrylonitrile methylcholanthrene, nitrosodiethylmine, N- [NDEA] tetraethyl lead trichloropropane, 1,2, The corrected water standards for the above substances are provided in Appendix (MO 26 page 110) The substance bis(chloromethyl) ether (CAS Number ) was incorrectly listed in CSR Schedule 3.2. As this substance is subject to extremely rapid hydrolysis in the environment, (i.e. half-life in water t 1/2 = 38 seconds), BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting bis(chloromethyl) ether (CAS Number ) and the substance s associated water quality standards from CSR Schedule 3.2 (see Appendix 13). 10. (MO 26 page 112) The substance chloromethyl methyl ether (CAS Number ) was incorrectly listed in CSR Schedule 3.2. As this substance spontaneously hydrolyses in the environment, (i.e. half-life in water t 1/2 = 1 second), BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting chloromethyl methyl ether (CAS Number ) and the substance s associated water quality standards from CSR Schedule 3.2 (see Appendix 13). 11. (MO26 page 115) CSR Schedule 3.2 contains a nomenclature error related to the substance (dichlorodiphenyltrichloroethane [DDT], total 31 ). The correct name for the substance is dichlorodiphenyltrichloroethane, total [DDT] (MO 26 page 118 CSR Schedule 3.2 contains a typographical error for the Aquatic life water standard (5 µg/l) for ethinylestradiol, 17-alpha [EE2] 39. The correct aquatic life water standard for ethinylestradiol, 17-alpha [EE2] 39 is µg/l. 13. (MO 26 page 120) The substance hydrofluoric acid (CAS Number ) was incorrectly listed in CSR 2

25 Schedule 3.2. As this substance spontaneously hydrolyses in the environment, BCELTAC advised that the substance cannot be analysed in environmental media, and therefore the substance should not be prescribed for CSR regulatory purposes. This error has been corrected by deleting hydrofluoric acid (CAS Number ) and the substance s associated water quality standards from CSR Schedule 3.2 (see Appendix 13). 1. (MO 26 page 129) A drinking water standard for thallium (CSA Number ) was incorrectly included in CSR Schedule 3.2. The TRV used by the US EPA to calculate the tap water (i.e. drinking water) screening RSL for thallium, which was subsequently adjusted (as described in footnote of Schedule 3.2) and adopted by the ministry as the drinking water standard for thallium, was qualified and acknowledged by the US EPA as being of insufficient scientific credibility for use as a RSL. Furthermore, due to the lack of scientific rigor associated with the TRV used by the US EPA to derive the tap water (i.e. drinking water) screening RSL for thallium; the tap water (i.e. drinking water) screening RSL for thallium should not have been adjusted and adopted by the ministry as a drinking water standard for use in CSR Schedule 3.2 This error has been corrected by rescinding the CSR Schedule 3.2 drinking water standard (0.0 ug/l) for thallium (see Appendix 13). 15. (MO 26 page 131) A drinking water standard for zirconium (CSA Number ) was incorrectly included in CSR Schedule 3.2. The TRV used by the US EPA to calculate the tap water (i.e. drinking water) screening RSL for zirconium, which was subsequently adjusted (as described in footnote of Schedule 3.2) and adopted by the ministry as the drinking water standard for zirconium, was qualified and acknowledged by the US EPA as being of insufficient scientific credibility for use as a RSL. Furthermore, due to the lack of scientific rigor associated with the TRV used by the US EPA to derive the tap water (i.e. drinking water) screening RSL for zirconium; the tap water (i.e. drinking water) screening RSL for zirconium should not have been adjusted and adopted by the ministry as a drinking water standard for use in CSR Schedule 3.2 This error has been corrected by rescinding the CSR Schedule 3.2 drinking water standard (0.3 ug/l) for zirconium. In addition, as Schedule 3.2 lists no other water quality standards, other than the above noted incorrect drinking water standard, for zirconium; the substance has been retracted as a prescribed substance from CSR Schedule 3.2 (see Appendix 13). 25