SJ Allen Holdings Limited (SJ Allen) is a commercial waste disposal firm that services wastewater treatment plants (WWTPs), grease traps, mud tanks/sumps, winery wastewater, portaloos and septic tanks throughout Central Otago area.
On 28 January 2026, the Otago Regional Council (ORC) granted SJ Allen resource consent RM25.407.01 to discharge five waste types to land at a rural property it owns in Lauder, Central Otago. These waste types are described on this page, and include waste activated sludge (WAS) from WWTPs, grease trap waste, mud tank/sump waste, winery wastewater, and similar waste types that meet Soil Eco-Guideline limits. The consent runs until 28 January 2041 and is subject to 29 conditions that ORC monitors for compliance.
WAS from WWTPs is expected to be the main waste discharged at the site. Grease trap waste, mud tank/sump waste and winery wastewater are currently discharged at another SJ Allen property in Alexandra (under ORC consent RM20.287.01.V1), but SJ Allen is seeking to consolidate these activities at the Lauder property.
This page explains what has been consented, the conditions attached to it, and how ORC is monitoring the site.
Purpose: To discharge contaminants to land for the disposal of waste collected from around Central Otago and Queenstown-Lakes
Location: Lauder, approximately 1km northeast of the intersection of Muddy Creek Road and Brown Road
Legal description: Section 25 and Section 47 Block V Lauder Survey District, Section 20 Block V Lauder Survey District
A resource consent is required for this activity under the Regional Plan: Water for Otago. The discharge of WAS, grease trap and mud tank/sump waste and winery wastewater contain contaminants from an industrial or trade premise. Therefore, the activities are considered a discretionary activity under rule 12.B.4.1.
Five types of waste are covered by the consent. Waste activated sludge (WAS) is expected to be the main waste discharged at the site.
What it is: Organic material left over after micro-organisms break down domestic wastewater at treatment plants (mainly from Alexandra and Project Pure WWTPs). Screening at the treatment plant removes solids and recognisable sewage material beforehand. The waste is mostly domestic in origin, with minimal to no input from industrial trade waste.
How much: Up to 2,000 tonnes per year (at 20% dry solids). In the first 12 months, WAS can only be applied to a maximum of 50 hectares.
How it's applied: Spread onto the land surface using a muck spreader or similar. It is then worked into the soil via discs to at least 50mm depth within 24 hours of being applied.
Land management: A "catch crop" (such as oats, ryecorn or triticale) must be sown after each application. No crops for human consumption may be harvested from treated land for 12 months after WAS is applied.
What it is: Fats, oils and liquid waste from takeaway and fast-food kitchens.
How much: Up to 1,200 m³ per year (max 20 m³ per day).
How it's applied: Placed into soakage trenches (roughly 1-2 m wide, 1.5-2 m deep, up to 150 m long), then capped with soil.
What it is: Waste from light industrial sites such as garages and roading contractors – mostly wash-down water and stormwater, with no heavy industrial input.
How much: Up to 1,200 m³ per year (max 20 m³ per day).
How it's applied: Into soakage trenches, layered with grease trap waste.
What it is: Mostly wash water (90%) plus screened winery waste (10%).
How much: Up to 1,200 m³ per year (max 20 m³ per day).
How it's applied: Discharged directly from a tanker truck onto separate strips of land (2.4 m wide), tracked by GPS to ensure even coverage.
The consent also allows similar waste types, provided they meet Soil Eco-Guideline limits. Currently, only WAS is being discharged at the site – no other waste types are scheduled for 2026.
The property has 178.57 hectares of consented land application area:
170.75 ha for WAS
7.82 ha for grease trap waste, mud tank/sump waste and winery wastewater
To protect neighbours and the environment, no discharge is permitted:
Setback | Distance |
From any property boundary | 10 m |
From formed public roads | 20 m |
From ephemeral wetlands | 20 m |
From natural watercourses | 50 m |
From water storage ponds | 20 m |
From irrigation races | 5 m |
From any residential dwelling | 200 m |
There is also a surface water take on neighbouring land to the south. A permanent 50m exclusion zone applies around a surface water take on neighbouring land, plus an additional 200m buffer for the first five years of the consent.

Otago Regional Council has made the decision to initiate a review of the consent for SJ Allen Holdings Limited which allows discharge of five waste types to land at a rural property it owns in Lauder, Central Otago.
A decision to review conditions was made under section 128 of the Resource Management Act was after careful consideration of a range of matters, including the information that was available at the time the original consent decision was made.
October 2026
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The purpose of this report is to provide a recommendation to an independent decision maker on whether conditions on discharge permit RM25.407.01 (the Consent) for SJ Allen Holdings Ltd (the Consent Holder) to discharge waste activated sludge, grease trap waste, mud tank/sump waste, and winery wastewater to land should be reviewed by Otago Regional Council (Council) under Section 128 of the Resource Management Act 1991 (the Act).
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ORC's role is to process the consent and then monitor SJ Allen's compliance with it – responding to any incidents and taking enforcement action where needed.
Here's what that monitoring looks like in practice:
Operations and Maintenance Manual (OMM) SJ Allen must operate strictly in line with its Operations and Maintenance Manual, which sets out day-to-day procedures, monitoring and contingency plans. Before any waste could be discharged, the OMM had to be reviewed and accepted by ORC, including an independent technical audit by ORC's technical review panel.
Testing every load coming onto the site Each of the waste types must be sampled at set intervals for parameters such as heavy metals, hydrocarbons and biological oxygen demand. All testing is carried out by an IANZ-registered (independently accredited) laboratory, and results must go to ORC within two weeks of being received.
Groundwater monitoring Before any discharge began on the 29th June 2026, SJ Allen installed two groundwater monitoring wells and carried out baseline testing in June 2026. These monitoring wells are located on the south side of the property, near a neighbouring residence. Ongoing sampling is required quarterly for the first two years, then annually. If results show a rising trend across three consecutive samples, SJ Allen must investigate further and report to ORC within 30 working days on the cause, any effects, and remedial action.
Odour monitoring There is no separate air discharge permit for this site – odour is managed as a Permitted Activity under the Regional Plan: Air for Otago, meaning it must not be offensive or objectionable beyond the property boundary. ORC responds to odour complaints via the Pollution Hotline and carries out proactive odour surveys at the boundary on days when discharge is occurring.
A full compliance audit within year one As a high priority activity under ORC’s Compliance and Enforcement Policy, the site will be routinely audited by Compliance Staff. An initial audit will be completed before the end of 2026, and again once the consent has been operating for 12 months. This audit looks at all 29 conditions – including a site visit and review of every sample result submitted over the year.
Regular reporting to ORC In addition to sample results, SJ Allen must also keep ORC informed through two formal reports:
Annual Report (due 15 August each year, covering 1 June – 31 May): covers all maintenance records, sampling results, volumes of each waste type, and an overall compliance summary.
Monitoring Summary Report (due at the one-year mark, July 2027): sent to both ORC and Aukaha (mana whenua), analysing monitoring results and effects, tracking nitrogen applied versus exported from the land, and outlining any proposed changes to how the site is managed. ORC and Kā Rūnaka will have the opportunity to comment on any proposed changes.
Water quality and sampling results will be published here as they become available.
ORC surface water monitoring results are coming soon.
Map of monitoring Bores 1 and Bore 2.
These results are being reviewed and processed and are being proactively released.
Existing State of the Environment Monitoring data is available on the Environmental Data Portal (orc.govt.nz/edportal) for the area. These sites are monitored as part of Council’s State of the Environment monitoring programme.
If you notice offensive odour, dust, or anything else of concern near this site, please contact us:
Pollution Hotline (24/7) 0800 800 033 | General enquiries 0800 474 082 | Report pollution online
For questions about the consent itself: Consents Enquiries consent.enquiries@orc.govt.nz
ORC is reviewing whether the current consent conditions remain appropriate. The review focuses on the conditions attached to the consent and whether any changes may be necessary to ensure environmental effects are appropriately managed.
The review process will determine whether any changes are necessary to the conditions. To help with this, ORC has identified a range of consent conditions that could be looked at. No decision has been made yet on whether the conditions will be changed.
ORC has served a notice of review on the consent holder.
The review will be processed in a similar way to a resource consent application and follows the statutory process. This includes an assessment of whether the review should be non-notified, limited notified, or publicly notified.
If notification occurs, submissions may be received and a hearing may be held before any decision is made on whether the consent conditions should change.
The below flow chart shows the key stages for a review under the RMA:
Whether the public will be able to make a submission will depend on the notification assessment and decision.
An independent decision maker will decide whether the review should be publicly notified, limited notified, or processed on a non-notified basis. That decision will be made in accordance with the Resource Management Act.
If the review is notified, submissions can only relate to the matters being considered as part of the review. The review is focused on the consent conditions.
A hearing will be required if submissions are received and people wish to be heard; or if the consent holder wishes to be heard; or if it is determined that a hearing is necessary. No decision has been made on this at this stage.
The consent remains in effect while the review is underway. The review process does not prevent the consent holder from continuing to operate in accordance with the existing consent conditions.
Yes. ORC will continue to undertake its normal compliance, monitoring and enforcement functions while the review process is underway. The additional monitoring being undertaken by ORC will still occur.
The timeframe will depend on a number of factors, including the notification decision, whether submissions are received, and whether a hearing is required.
ORC is the regulator of this activity. Our role was to assess the resource consent application against the relevant requirements of the Resource Management Act and rules in the Regional Plan and determine whether the activity could be undertaken subject to appropriate conditions to manage environmental effects. We also ensure that consented activities then comply with the conditions of their consent and that environmental effects are appropriately managed. This is a role which ORC takes seriously. Where concerns are raised, these are considered as part of our ongoing compliance and monitoring responsibilities.
The consent is held by SJ Allen Holdings Limited (SJ Allen), a commercial waste disposal firm that services wastewater treatment plants (WWTPs), grease traps, mud tanks/sumps, winery wastewater, portaloos and septic tanks. The consent runs until 28 January 2041 and is subject to 29 conditions that ORC monitors for compliance.
Yes. Grease trap, mud tank/sump and winery wastewater have previously been discharged at another SJ Allen property under a separate consent (RM20.287.01.V1). SJ Allen is consolidating these activities at the Lauder site.
The consent permits discharge of five waste types to land at a rural property in Lauder, Central Otago.
This includes: waste activated sludge (WAS) from Wastewater Treatment Plants, grease trap waste, mud tank/sump waste, winery wastewater, and similar waste types that meet Soil Eco-Guideline limits.
It allows for up to 34.2 tonnes of N/yr (or 102.5 tonnes of N in a 3-year return period), and 3,600 m³ of grease trap, mud tank and winery waste to be disposed of over a total of 178 ha. For the first 12 months, WAS can be spread on no more than 50 hectares in total.
The waste is being spread on farmland in Lauder, approximately 1km northeast of the intersection of Muddy Creek Road and Brown Road. The discharge cannot occur within:
10 metres of any property boundary
20 metres of any formed public roads
20 metres of ephemeral wetlands
50 metres of any other natural surface watercourses
20 metres of any water storage ponds
5 metres of any irrigation races
200 metres of any residential dwellings
There is also a surface water take on neighbouring land to the south. A permanent 50m exclusion zone applies around a surface water take on neighbouring land, plus an additional 200m buffer for the first five years of the consent.
The application identified:
Irrigation bore G41/0296 approximately 910 m from the discharge area
No other bores within 2 km
No domestic groundwater takes downgradient within 2 km
Potential effects on registered permitted takes and consented groundwater and surface water takes were assessed as part of the process as required by the Act. The consent includes conditions requiring groundwater monitoring, setbacks from waterways and ongoing reporting.
The disposal at this location has been occurring since June 2026.
There are no operations which exactly match the Lauder site, however the disposal of wastewater to land does occur elsewhere. There are more than 200 resource consents in Otago which allow for the discharge of treated sewerage to land. These range from single dwelling septic systems to Wastewater Treatment Plants.
The certified Operations and Maintenance Manual (OMM) requires:
Regular site walkovers.
Monitoring for surface ponding.
Monitoring for odour during and after application events.
Weekly inspections of Waste Activated Sludge (WAS) application areas.
Daily inspections of grease trap and mud sump trenches.
Complaint recording and investigation procedures.
Ongoing contact with neighbours to identify any adverse effects.
For WAS, material must be incorporated into soil within 24 hours to a minimum depth of 50 mm. For grease trap and mud sump waste, trenches may be covered if odour becomes apparent. Covered trenches are also reinstated and planted.
The consent requires installation of a groundwater monitoring bore (BH-001), collection of two baseline groundwater samples and ongoing monitoring. Currently, monitoring occurs quarterly for the first two years and then annually. Parameters include:
pH
Chloride
Electrical conductivity
E. coli
Nitrate/nitrite nitrogen
Ammoniacal nitrogen
Dissolved reactive phosphorus.
The OMM goes beyond the consent by including monitoring of:
BH-001 (required consent bore).
BH-002 (additional bore installed by the consent holder).
The OMM notes that BH-002 is located upstream of the neighbouring drinking water take and will be monitored quarterly.
The amount of Nitrogen (N) applied in the WAS per hectare (Ha) and the amount of N used by the crops planted is also monitored. This helps provide information on the N left in the soil and at risk to leaching.
Upstream and downstream surface water sampling will be undertaken by Council every two weeks. Additional groundwater sampling of bores in place to monitor the activity will be undertaken by Council in between samples taken by the Consent Holder. This will be undertaken by ORC as part of their compliance programme.
Monitoring of township bores or private supplies by the Consent Holder could only be introduced through consent review, future consent amendments or voluntary monitoring.
The consent requires extensive monitoring of contaminants including:
Groundwater
E. coli
N species
Phosphorus (P) indicators
Waste streams
Heavy metals including arsenic, cadmium, chromium, copper, lead, mercury, nickel and zinc
Hydrocarbons
Nutrient parameters
The OMM also includes the monitoring of:
Soils
Nutrients
Heavy metals
Surface water
N species
P indicators
Sediment indicators
The certified OMM includes:
Quarterly monitoring for the first five years
Upstream and downstream monitoring
Monitoring in both Clear Creek and the Lauder Creek tributary
Any additional monitoring could be considered as part of a review process or added voluntarily by the Consent Holder.
Additional monitoring upstream and downstream of the site in Lauder Creek started the week of the 19th of October. This will be undertaken by Council every two weeks.
The consent does not require monitoring at the Lauder SOE site. The monitoring required by the consent and OMM are highly likely to detect any environmental effects. Any abnormal pattern detected at a SoE site is always investigated and would trigger more frequent monitoring. Council routinely monitors this site and results are publicly available.
The consent requires ongoing characterisation of each waste type. Sampling frequencies range from every 100 m³ to every 500 m³ depending on the type of waste.
The consent does not require testing of every individual load before arrival.
Management occurs through:
Waste-stream monitoring
Heavy-metal testing
Soil monitoring
Groundwater monitoring
Crop monitoring
Nutrient budgeting
Environmental Management Plan (EMP) and OMM Reporting
Soil Eco-Guideline thresholds
Yes, compliance visits and associated monitoring are paid for by the Consent Holder.
The results will be uploaded 2-3 days after Council has received them. Generally, the lab takes 7-10 days to process the results after they have received the samples. All received results available prior to 5 August 2026 were published on October 12, in a bulk upload whilst council developed the webpage to display the data. Results from ORC monitoring will also be made available on the webpage.
The consent requires five-yearly soil monitoring for heavy metals. The OMM expands this to also include:
Total N
Total P
Olsen P
Potassium
Sulphate
Calcium
Magnesium
Sodium
pH
The soils Cation Exchange Capacity (CEC)
Total carbon (C)
C:N ratio
A control area where no biosolids are applied is included for comparison.
Irrigation has been reduced from previous levels. It is primarily required to help with crop yields, and only when the soil is dry. The OMM and consent require:
No application during heavy and persistent rainfall.
No application to saturated soils.
No application where incorporation requirements cannot be achieved.
Only applying when there is a soil moisture deficit in the top 50mm of soil within 200 m of any water takes.
The material authorised by the consent is treated organic waste. Information on the nature of the material and associated risks was assessed through the consent process and the consent includes conditions requiring management and monitoring to manage potential effects on human health and the environment.
Yes. The assessment considered the suitability of the land, nutrient loading, application rates and the potential effects on soil, groundwater and surface water. The consent includes limits, management requirements, monitoring and reporting conditions to ensure the activity operates within the parameters assessed through the consent process.
ORC has received a number of complaints relating to potential odour issues. ORC regularly visits the site and undertakes odour assessments. The discharge to land activity is authorised by a resource consent. There is no resource consent allowing a discharge to air meaning the consent holder and must comply with ORC’s permitted activity rules in relation to any air discharges relating to dust and odour. Those rules state that no offensive or objectionable odour can occur beyond the property boundary. To date, ORC have not detected any offensive or objectionable odour beyond the site boundary.
Under the Resource Management Act, whether an odour is "offensive or objectionable" is ultimately a matter for Council to determine having regard to professional judgement, site observations, complaints and the surrounding environment. More information can be found here https://www.orc.govt.nz/environment/air-care/odours
To date there has not been any evidence of dust discharges beyond the boundary, but ORC staff are aware of the concern and will be monitoring as we head into Spring and Summer. Dust monitors may be put in place proactively by Council to monitor the site. Any photographic or video evidence of dust discharges can be sent to the ORC Pollution Hotline.
Results of odour assessments will be published on Council's website.
The WAS uses the current NZ Biosolids guidelines to meet the stabilisation grade 1 for vector controls. The key vector attraction reduction (VAR) process is the undertaking of soil incorporation within 24 hours. Although the consent does not require a dedicated pest monitoring programme, the OMM includes a number of operational controls intended to minimise attraction of birds, rodents and insects:
WAS is incorporated into soil within 24 hours.
Sowing of a catch crop as soon as possible after the WAS application (generally within one month).
Grease trap waste is placed at the bottom of trenches.
Trenches are progressively filled and capped.
Odorous material can be immediately covered with excavated material.
Reinstated trenches are planted.
Daily trench inspections occur.
No open WAS stockpiles are authorised.
The notification decision and consent duration decision are separate assessments under the Resource Management Act. The consent duration was considered under section 123 of the RMA. While the Act allows resource consents to be granted for up to 35 years, a 35-year term is not the default or expected outcome. The report also referred to relevant policy direction supporting an adaptive approach and not the maximum duration. For those reasons, a shorter consent duration was considered more appropriate than the maximum available term.
The application was processed on a non-notified basis. ORC's analysis under the steps required by the Resource Management Act 1991 (RMA) found public notification was not required as effects were not expected to extend beyond the property boundary.
The activity is a discharge of industrial or trade waste contaminants to land and identifies it as a discretionary activity under Rule 12.B.4.1. Although agricultural production forms part of land management, the consent is regulated as a contaminant discharge activity rather than a farming
Condition 29 to the resource consent enables the allows ORC to initiate a review of the consent conditions. Under condition 29, a review can be initiated:
each year, within a three-month window either side of the anniversary of the consent being granted (28 January);
within two months of taking any enforcement action; or
after receiving monitoring results.
A review initiated under condition 29 can be for the purpose of:
determining whether the condition area adequate to deal with any adverse environmental effects that may arise from the exercise of the consent and which it is appropriate to deal with at a later stage, or that become evident after the consent commences ;
ensuring the conditions are consistent with national environmental standards, regional plans, or the Otago Regional Policy Statement;
reviewing how often monitoring or reporting is required;
amending the monitoring programme; or
requiring SJ Allen to adopt better practices to prevent or reduce environmental effects.
Condition 29 reflects section 128(1)(a) of the Resource Management Act 1991, which provides that reviews may be initiated at times and for purposes specified in the consent. Section 128 also enables reviews of consent conditions to be initiated for other specified purposes.
Council is considering if a review is appropriate and working to the date around the 3-month anniversary.
Yes. Consents can only be cancelled in specific situations, as set out in the RMA. The situations are very limited and include:
1. Where the consent has previously been exercised but has not been exercised within the preceding five years.
2. Where the council reviews the consent under s 128(c) of the RMA and the review process finds that:
the information supplied by the applicant in the consent application contained inaccuracies which materially influenced the decision made on the application; and
there are significant adverse effects on the environment.
3. An enforcement order is made by Environment Court that cancels or revokes the consent,
4. The consent holder has been convicted of an offence for contravening the consent; and
the Court has ordered the consent authority to review the resource consent; and
there are significant adverse effects on the environment.