Contaminated Land and Hazardous Substances Masterton Gasworks - - PowerPoint PPT Presentation

Contaminated Land and Hazardous Substances

Masterton Gasworks

• Given controlled activity consent under

Discharges to Land Plan in 2014 for 25 years

• Continues to leach arsenic, cyanide

and PAHs beyond boundary of the site both in groundwater and surface water and movement of silt within stream bed progressing downstream.

• Assessment under pNRP- as the

ground and surface water at or beyond the boundary of the site can not meet the standards set in the permitted activity criteria in R55, they would be required to gain a discretionary resource consent under R56

• Assessing the site under the requested

amendments, the rules will be easier to understand and interpret, activity would still require discretionary consent under R56

Gun Club – new activity

• Wairarapa Gun Club

• Non notified consent issued November

2016 for discharge of steel shot and clay targets to land – 10 years

• Non notified consent issued July 2017

for discharge of lead shot and clay targets to land – 15 years

• Main contaminants of concern lead

and antimony (heavy metals that contaminate soil and water) and PAH’s from clay targets.

• Consent granted as the ‘effects’ were

determined to be localised until they reached certain contaminant levels and the landowner had signed off as an affected party, therefore effects on the landowner could not be considered.

• Would recommended changes to

policies and rules have made any difference to the assessment of activity against objectives/policies?

• Policy 89 strengthened by saying shall

be avoided instead of managed

• Policy 95 may be less permissive as it

will refer to RMA definition of contaminated land rather than having to wait for contamination to become so bad that it then falls into Category III definition

• R57 – discharge of hazardous

substances – non complying activity has been extended to cover land i.e. soil

• Non complying activity status requires

an ‘or’ test, either adverse effects will be minor OR activity will not be contrary to objectives and policies of relevant plan and proposed plan.

• If the adverse effects on the land are

more than minor, the s104D

• bjective/policy test applies. The

recommended changes would give clearer direction that the objective of the Plan is to avoid creating contaminated land

• pNRP does not require a landowner to

undertake contaminated land

• investigations. NES-CS (implemented

by TAs) applies only when land use changing to a more sensitive use or subdivision.

• Recommended changes to R42 –

minor discharges, R48 and R49 – stormwater rules will make it clearer that these types of discharges will only cover confirmed contaminated sites, not those like the gun club which will have contaminants but unless an assessment and reporting is undertaken which then pushes it into Category III – confirmed contaminated, they can carry on with stormwater discharges from the site as permitted activities.