149 ii. at all critical stages during the ongoing design and construction of Northern Rock Stack but not less than annually; iii. on the completion of the Northern Rock Stack; iv. following any significant design changes; and v. prior to commencement of approved post closure discharge to the Ohinemuri River from the Northern Rock Stack collection pond, b. And shall address at least the following matters: i. progress against the Annual Work Programme; ii. site preparation including hydrogeological issues and geotechnical issues; iii. foundation design and use of on-site material; iv. foundation design and construction; v. all underdrainage systems; vi. stockpile management; vii. monitoring; and viii. rehabilitation and closure plans associated with the Northern Rock Stack.
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