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Rule 3 Stormwater and reticulation systems

Rule 3 Stormwater and reticulation systems

Updated 23 November 2012 12:12pm

The discharge of contaminants into or onto land:

(1) as stormwater collected from any motorway, road, street, roof, yard, paved surface, grassed surface or other structure(but not including stormwater discharged into a pipe which discharges into surface water); or

(2) from the maintenance, repair and inspection of pipes, drains and pumps of the following network utility services:

(a) water supply systems;

(b) irrigation schemes; and

(c) stormwater systems; and

(d) sewerage systems; or

(3) the emptying of water storage reservoirs;

is a Permitted Activity, provided

(a) the discharge shall not have a free or combined chlorine content of greater than 50 g/m 3;

(b) the discharge shall not cause water to enter any property beyond the boundary of the property or area in which the discharge occurs, unless the written approval(s) of the owners and occupiers of affected properties has been obtained;

(c) all pipelines, drains, pumps and reservoirs shall be constructed and maintained in an efficient operating condition.

[(ca) The discharge does not originate from industrial or trade premises where hazardous substances are stored or used unless:

(i) hazardous substances cannot enter the stormwater system; or

(ii) there is an interceptor system in place to collect hazardous contaminants or divert contaminated stormwater to a trade waste system.]

And for discharges from the maintenance, repair or inspection of sewerage systems the following additional conditions apply:

the Wellington Regional Council and the Medical Officer of Health shall be notified of the discharge at least 24 hours before the discharge takes place for planned maintenance, repair or inspection, and as soon as is practical, but no more than 24 hours after the discharge if it is due to a response to a break or other failure,

(d) in accordance with the provisions of the Response Manual for Sewage Discharges (Edition 1, August 1993, Public Health Service);

(e) signs indicating any public health risks arising from the discharge shall be displayed at the discharge site, for as long as the health risk exists.

Explanation. Rule 3 applies to discharges of stormwater, and to the operation of specified network utilities if there are associated discharges to land. This rule does not apply to contaminants discharged into a pipe which discharges to water. These discharges are controlled by Rule 2 (because they breach Rule 1(a)) unless the contaminants are “stormwater”, in which case they are controlled in Rules 2 and 3 of the Regional Freshwater Plan.

The Council is informed of overflows from sewers, through breakage or during repair, about every two weeks. To date, the Council has not required any consents under Section 330a of the Act because the remediation is undertaken swiftly in accordance with requirements from the Medical Officer of Health.

Condition (ca) of Rule 3 was inserted by Plan Change 1 to the Regional Plan for Discharges to Land 2003