Trade waste prices
Unitywater allocates Treatment Tiers to all Category 1 customers, following a detailed assessment of the impact of your trade waste on the wastewater network.
| Tier |
Annual permit fee 2026-27 ($ excl. GST)* |
|---|---|
| Very low | $606.00 |
| Low | $1,200.00 |
| Medium | $1,688.00 |
| High | $2,526.00 |
| Very high | $3,788.00 |
| Annual permit fee 2026-27 ($ excl. GST)* |
|
|---|---|
| Trade waste permit | $3,968.00 |
| Trade waste volumetric pricing | Unit | 2026-27 price ($ excl. GST)* |
|---|---|---|
| Tankered domestic wastewater and landfill / holding tank leachate | per kilolitre | $3.30 |
| Tankered non domestic wastewater | per kilolitre | $37.90 |
| Tankered chemical toilets | per kilolitre | $76.20 |
| Tankered septic tank / on site waste treatment systems | per kilolitre | $90.20 |
*GST is not applicable on any of the above trade waste charges.
| Trade waste strength pricing1 | Unit | 2026-27 price ($ excl. GST)* |
|---|---|---|
| Sulphate | per kilogram | $1.60 |
| Chemical Oxygen Demand (COD) | per kilogram | $1.90 |
| Total Suspended Solids (TSS) | per kilogram | $2.60 |
| Total Nitrogen (or TKN) | per kilogram | $5.10 |
| Total Phosphorous (TP) | per kilogram | $15.90 |
1Only applies to waste above Wastewater Admission Limits (SAL). The SAL are:
- Sulphate 500mg/L
- COD 600mg/L
- TSS 300mg/L
- TKN 150mg/L
- TP 50mg/L
*GST is not applicable on any of the above trade waste charges.
| Trade waste other services pricing | Unit | 2026-27 price ($ excl GST)* |
|---|---|---|
| Arrestor required but not installed | per annum | $1,627.00 |
| Inadequately sized arrestor | per annum | $658.00 |
| Garbage grinder/food waste disposal unit - Up to 0.4 Kw/h |
per annum | $849.00 |
| Garbage grinder/food waste disposal unit - Between 0.4 and 0.6 Kw/h |
per annum | $3,788.00 |
| Garbage grinder/food waste disposal unit - Over 0.6 Kw/h |
per annum | $7,453.00 |
| Liquid waste carriers - permit | per annum | $404.00 |
| Liquid waste carriers and tankers - access tag deposit | per tag | $83.00 |
| Plan verification, assessment and/or inspection | per hour | $114.00 |
| Trade waste search (property and/or business) 1.5 hours | per application | $268.00 |
*GST is not applicable on any of the above trade waste charges.
