Annual report 2006-2007 - Taranaki Regional Council

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4. Egmont Tanneries Limited 4.1 Process description 50 The tannery is situated beside a major tributary of the Kahouri Stream about 0.5 km north of Stratford. When fully operational, the tannery processed hides and skins, mainly woolly sheepskins. Wastes from the tannery have in the past been pumped to the Stratford sewerage system. Rainwater from the roofs of the buildings at the tannery is collected and was used in processing. Stormwater from around the site is collected in a drainage system and discharged via a pipe to an unnamed tributary of the Kahouri Stream. Offensive odours from the tannery have in the past been reported from the municipal sewer system on Broadway North in Stratford. Egmont Tanneries has undertaken two actions to reduce such odour. First, the bleach solution that is the apparent source of the odour is now used to pre-wash skins after bleaching capability has been lost, thus ensuring that it is totally spent before discharge. Secondly, the pipeline between the effluent holding tanks and the sewer is allowed to drain back into the holding tanks when it is not in use, thereby preventing smell formation within the line. These measures have been successful, and no complaints about odour have been received by the Council since December 1997. In June 2005, the Company notified the Council that they were no longer operating as a tannery, and were now only receiving hides, which were placed directly into water tight bins and sent to Hastings for tanning. No killing or skinning occurs on site. As a result no wastewater is generated. Figure 17 Egmont Tanneries site layout
4.2 Resource consents 4.2.1 Water abstraction permit 51 Section 14 of the Resource Management Act stipulates that no person may take, use, dam or divert any water, unless the activity is expressly allowed for by a resource consent or a rule in a regional plan, or it falls within some particular categories set out in Section 14. Egmont Tanneries holds water permit 5176 to cover the abstraction of 150 m 3/day (7 litres per second maximum) of water from an unnamed tributary of the Kahouri Stream for hide tanning operations. This consent was granted in September 1992 under Section 87(d) of the Resource Management Act. This permit is due to expire on 1 June 2010. Two special conditions are attached to the consent. The special conditions require that the abstraction shall not exceed a percentage of a defined low flow, and that the consent holder may be requested to supply records of water usage to the Council. The permit is attached to this report in Appendix I. 4.2.2 Water discharge permit Section 15(1)(a) of the Resource Management Act stipulates that no person may discharge any contaminant into water, unless the activity is expressly allowed for by a resource consent or a rule in a regional plan, or by national regulations. Egmont Tanneries holds water discharge permit 1816 to cover the discharge of up to 150 litres per second of stormwater from a tannery site into an unnamed tributary of the Kahouri Stream. This permit was issued by the Taranaki Regional Council on 17 December 1997 under Section 87(e) of the Resource Management Act. It expires on 1 June 2016. Special conditions 1 and 2 specify limits for the discharge and that beyond a discharge mixing zone of 50 metres, the discharge shall not give rise to effects on the Kahouri Stream. Special condition 3 is a review condition. The permit is attached to this report in Appendix I. 4.2.3 Air discharge permit Section 15(1)(c) of the Resource Management Act stipulates that no person may discharge any contaminant from any industrial or trade premises into air, unless the activity is expressly allowed for by a resource consent, a rule in a regional plan, or by national regulations. Egmont Tanneries holds air discharge permit 4238 to cover the discharge emissions to the air from the skinning of animals, the tanning, storage and dressing of animal skins and the manufacture and sale of finished leather and animal skin goods. This
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Kahouri Stream Monitoring Programme
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Six complaints, which were logged a
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ii 2.7 Recommendations 37 3. Tarana
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iv 6.6.4 Recommendations from the 2
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vi List of tables Table 1 Resource
Page 13: Figure 6 Biological oxygen demand (
Page 16 and 17: Section 11 presents recommendations
Page 18 and 19: 1.2.1 Other resource consents A tot
Page 20 and 21: Figure 1 Biological and chemical mo
Page 22 and 23: 2. Taranaki Abattoir Co (1992) Limi
Page 24 and 25: 10 Waste liquor and floor washings
Page 26 and 27: 2.2.2 Water discharge permit 12 Sec
Page 28 and 29: 24 March 2005, under Section 87(e)
Page 30 and 31: 16 plant staff were made aware of t
Page 32 and 33: 18 inspection, staff also outlined
Page 34 and 35: Dissolved oxygen (g/m 3 ) 35 30 25
Page 36 and 37: Dissolved Reactive Phosphorus (g/m3
Page 38 and 39: 24 In comparing the results (upstre
Page 40 and 41: 26 Biological survey The Council’
Page 42 and 43: SQMCIs Value 7 6 5 4 3 2 1 0 A C E
Page 44 and 45: 2.6 Discussion 2.6.1 Discussion of
Page 46 and 47: Table 7 Summary of performance for
Page 48 and 49: 34 Condition requirement Means of m
Page 50 and 51: 36 1. THAT monitoring of air emissi
Page 52 and 53: 3. Taranaki Galvanizers 3.1 Process
Page 54 and 55: Special condition 4 defines the mix
Page 56 and 57: 42 underneath the galvanising plant
Page 58 and 59: NH 4 -N (g/m 3 ) 44 Ammoniacal nitr
Page 60 and 61: 3.4.2 Air 46 Air monitoring in the
Page 62 and 63: 48 Table 14 Summary of performance
Page 66 and 67: permit was issued by the Taranaki R
Page 68 and 69: 54 An additional inspection was und
Page 70 and 71: 56 Table 16 Results of summer low-f
Page 72 and 73: 58 In the 2006-2007 year, there was
Page 76 and 77: 62 In the case of Egmont Tanneries,
Page 78 and 79: 5.3 Monitoring programme The monito
Page 80 and 81: 66 Water chemistry The chemical wat
Page 84 and 85: 6. Contact Energy Limited (closed p
Page 86 and 87: 72 not suggest that discharges from
Page 88 and 89: 74 7. Contact Energy Limited (CCPS)
Page 90 and 91: 7.3.2 Biomonitoring surveys 76 One
Page 92 and 93: 78 Condition requirement Means of m
Page 94 and 95: 8. Fletcher Concrete & Infrastructu
Page 96 and 97: 8.3.2 Chemical sampling 82 The Tara
Page 98 and 99: 84 The stream at this site had a cl
Page 100 and 101: 8.6.5 Alterations to monitoring pro
Page 102 and 103: 88 what effects the discharge shall
Page 104 and 105: 90 Incidents may be alleged to be a
Page 106 and 107: 10. Water quality in the Kahouri ca
Page 108 and 109: 94 Most MCI scores were similar to
Page 110 and 111: 96 12. Summary of recommendations 1
Page 112 and 113: NH3 unionised ammonia, normally exp
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Appendix I Resource consents held b
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To Job Manager, B Jansma From Scien
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Figure 1 Biomonitoring sites in the
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Table 3 Macroinvertebrate fauna of
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MCI value 140 120 100 80 60 40 20 0
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Site E: Kahouri Stream (KHI000400)
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mayflies, elmid beetles, Archichaul
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Further downstream at Flint Road, t
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Annual report 2006-2007 - Taranaki Regional Council

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