AUTH-300376-V2
Cnr North Road and Price Street
(Private Ba
g 90116)
Invercar gill
Telephone
(03) 211 5115
Fax No. (03
) 211 5252
Southland Freephone No. 0800 76 88 45
Discharge Permit
Pursuant to Section 104B of the Resource Management Act 1991, a resource consent is hereby
granted by the Southland Regional Council (the "Council") to
Resolution Developments Limited
(the “consent holder”) of
P O Box 25, Mataura 9356 from
27 July 2011.
Please read this Consent carefully, and ensure that any staff or
contractors carrying out activities under this Consent on your behalf
are aware of all the conditions of the Consent.
Details of Permit
Purpose for which permit is granted:
To discharge contaminants to the air from a lignite
briquetting plant, including boiler emissions
Location
- site locality
Craig Road, Mataura
- map reference
F46:886-349
- receiving environment
Air
- airshed
Southland
Legal description of land at the site:
Section 7E Block IX Lindhurst Hundred
Expiry date:
27 July 2031
History of Changes and Transfers
Conditions varied on 30 May 2012.
Conditions varied on 17 November 2015.
Transferred from
Solid Energy NZ Ltd to Resolution Developments Ltd on 1 September
2017.
Schedule of Conditions
1.
This consent is granted for a period of 20 years.
Environment Southland is the brand name of
the Southland Regional Council
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(Note: Pursuant to Sections 123 and 124 of the Resource Management Act 1991, a new consent
will be required at the expiration of this consent. The application will be considered in accordance
with the plans in effect at that time, and the adverse effects of the proposed activity).
2.
This consent authorises the emissions of contaminants to air from a lignite briquetting plant,
including boiler emissions, at about map reference NZMS 260 F46:886-349.
General Conditions
3.
The discharge to air shall only be contaminants from a coal-fired boiler having a gross
operational energy output of up to 7.2 megawatts, the storage and handling of lignite coal and
lignite briquettes, the processing of lignite into briquettes and associated activities as
described in the application for consent.
4.
(a)
There shall be no discharge of particulate matter from the coal-fired boiler, the
briquetting plant, bulk storage and handling of lignite and briquettes, or any associated
activity, that is offensive or objectionable beyond the boundary of the property on which
the consent is exercised
(b)
There shall be no discharge of odour beyond the boundaries of the property that is
noxious, offensive or objectionable to such an extent that it has an adverse effect on the
environment. When odour is being assessed for the purposes of this condition the
following factors are to be taken into consideration:
frequency of the odour;
intensity of the odour;
duration of the odour;
offensiveness of the odour; and
location of the odour effect.
5.
The processes resulting in discharges to air shall be operated and maintained using either the
emission control mechanisms as described in the application, or using processes which provide
at least an equivalent level of emission control, as confirmed in writing by independent
assessment by a suitably qualified person. Details of any changes shall be included in the
Annual Environmental Report to the Southland Regional Council required under Condition 26.
6.
(a)
Continuous dust monitors shall be installed on the exit of bag houses to ensure that
total particulate emission concentrations remain below 15 mg/Nm3 for Baghouse No.1,
and 25 mg/Nm3 for Baghouses Nos. 2 and 3. The monitors should be calibrated at least
annually by comparison with a gravimetric particulate test carried out by an accredited
organisation to ensure that the outputs of the continuous dust monitors as far as
practicable reflect the standardised particulate emission limits imposed by Conditions
11 a) and 16 a) and b). The baghouses shall be operated to comply with the particulate
emission limits.
(b)
Records from the continuous dust monitors shall be available to the consent authority
on request, and shall be summarised and supplied to Environment Southland in the
Annual Environment Report required under Condition 26.
(c)
Exceedances of these baghouse limits by more than 20% and for more than one hour
should be reported to Environment Southland’s Compliance Manager (email:
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AUTH-300376-V2
[email address]), without undue delay along with an explanation for the
exceedance and any remedial action undertaken.
Coal-Fired Boiler and Associated Facilities
7.
The maximum coal burning rate shall not exceed 1597 kilograms per hour.
8.
Combustion gases from the boiler plant shall be discharged to air via a multi-cyclone grit
arrestor and bag filter or via other emission control equipment as necessary to comply with
condition 11.
9.
(a) The discharge to air from the boiler shall occur via a stack at a height of at least 35
metres above local ground level. The minimum efflux velocity of exhaust air from the
stack shall be 11 metres per second at the maximum operating output of the boiler.
(b) The discharge to air shall occur at a height at least 10 metres above the roof ridgeline of
all buildings on the consent holder’s property.
(c) The discharge shall be directed vertically into air and shall not be impeded by any
obstruction above the stack that decreases the vertical efflux velocity below that which
would occur in the absence of such obstruction.
10. The opacity of emissions from the chimney stack shall not be darker than Ringelmann Shade 1
as described in New Zealand Standard 5201:1973 except:
(a) in the case of a cold start for a period not exceeding 30 minutes in the first hour of
operation;
(b) for a period not exceeding a total of two minutes in each succeeding hour of operation.
11. The discharge of total suspended particulate matter in combustion gases to air from the boiler
stack shall not:
(a) exceed a concentration of total suspended particulate matter, unless the bag filter (or
other equipment providing an equivalent degree of emission control) is being lawfully
bypassed in accordance with Condition 11(b), of 25 milligrams per cubic metre corrected
to 0 degrees Celsius, 101.3 kilopascals, and adjusted to 12 percent carbon dioxide by
volume on a dry gas basis. The mass emission rate shall not exceed 0.26 kilograms per
hour;
(b) exceed a concentration of total suspended particulate matter of 250 milligrams per
cubic metre corrected to 0 degrees Celsius, 101.3 kilopascals, and adjusted to 12 percent
carbon dioxide by volume on a dry gas basis when the bag filter (or other equipment
providing an equivalent degree of emission control) bypass is being operated under the
following circumstances for the shortest time practicable:
(i)
in the event of flue gas temperatures sufficiently high to damage filter bags or
other control equipment but only after boiler fuelling is stopped;
(ii) drying out green refractory during commissioning of the boiler following repairs to
boiler refractory, and during subsequent re-bricking, and only up to five days from
commencing drying out;
(iii) during commissioning of the boiler if it is essential to bypass the bag filter or other
control equipment; and
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(iv) in the event of bag filter or other control equipment malfunction providing the
bypass shall not occur for more than three hours at any time.
The dates and times the bag filter or other control equipment is bypassed, and the reasons for
bypassing, shall be recorded, and records shall be retained and made available to the
Southland Regional Council on request, and shall be included as a part of the Annual
Environmental Report required under Condition 26.
12. (a) The maximum sulphur dioxide discharge rate shall not exceed 11.8 kilograms per hour.
The sulphur dioxide discharge rate shall be calculated from the burning rate of the coal
and/or briquette blend used at maximum boiler operating capacity and the sulphur
content of that coal blend determined according to Condition 12(b), allowing for a
maximum 10 percent sulphur retention in the ash. Records shall be kept of the coal
blend burned in the boiler, including average gross calorific value and sulphur content by
weight, and the calculated maximum sulphur dioxide emission rate based on that
information. These records shall be provided to the Southland Regional Council in
accordance with Condition 26.
(b) Analysis of coal and/or lignite briquettes to be burned in the boiler shall be undertaken
at least once every three months, providing the coal source or blend remains constant.
If the coal source or blend changes then a representative analysis of the sulphur content
shall be carried out as soon as practicable and within not less than five working days of
beginning to burn the new coal and/or briquettes. Weekly 1 kg samples of coal and/or
briquettes shall be collected and composited on an equal weight basis to ensure the 3-
monthly sample analsyis has at least 12 weekly samples in the composite. Each single
sample to be analysed for coal sulphur shall be generated from sub-samples that are
randomly selected. All coal samples required under this consent shall be analysed as
soon as practicable for combustible sulphur as percent by weight of coal and gross
calorific value as megajoules per kilogram of coal, on an as received basis, by a
laboratory accredited by IANZ for these analyses. These data shall be provided to
Southland Regional Council in accordance with Condition 26 and otherwise on request.
13. (a) The concentration of total suspended particulate matter, and the concentration of
sulphur dioxide, in combustion gas in the boiler stack shall be measured within three
months of the commencement of boiler operation and thereafter at least once every
12 months. Measurement of the discharge from the boiler shall occur when the boiler is
operating at a rate of at least 75 percent of the maximum continuous rating. Testing,
and analysis of samples as appropriate, shall be carried out by an organisation and by a
laboratory accredited by International Accreditation New Zealand (IANZ) for the tests
and analyses involved.
(b) The consent holder shall install sampling ports in the boiler stack or the duct into the
boiler stack as appropriate in accordance with Australian Standard AS4323.1-1995 or
equivalent method for the provision and location of sampling ports, services, platforms
and access as well as provision of single phase electrical supply.
(c) The method of sampling and analysis for total particulate matter shall comply with US
Environmental Protection Agency (USEPA) Methods 5 or Method 17, or ISO 9096:2003,
ASTM D3685-98, or equivalent method to the satisfaction of the Southland Regional
Council. The testing time for each particulate sample shall be two hours continuous, and
at least three samples shall be collected. Results shall be adjusted to zero degrees
Celsius, 101.3 kilopascals, and 12 percent carbon dioxide on a dry gas basis, and as a
mass emission expressed as kilograms per hour.
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AUTH-300376-V2
(d) The method of sampling and analysis for sulphur dioxide shall be USEPA Method 6, 6A,
or 6C, or an equivalent method to the satisfaction of the Southland Regional Council.
The testing time for each sulphur dioxide sample shall be one hour continuous and at
least three samples shall be collected. Results shall be adjusted to zero degrees Celsius,
101.3 kilopascals, and 12 percent carbon dioxide on a dry gas basis, and as a mass
emission expressed as kilograms per hour.
(e)
Volumetric flow of combustion gas, and gas temperature, during each particulate and
sulphur dioxide emission test shall be determined and recorded and results presented as
a part of the particulate emission test report.
(f)
The oxygen or carbon dioxide concentration in combustion gases shall be continuously
monitored and recorded during each particulate and sulphur dioxide emission test and
results shall be presented as a part of the particulate emission test report.
(g) The following operating parameters of the boiler during each particulate and sulphur
dioxide emission test shall be obtained and included in the testing report: furnace
temperature, furnace back-end oxygen concentration (wet gas or dry gas basis
identified), rate of firing (coal consumption per unit time and steaming rate) and any
abnormal operation during the testing period.
The results of emissions tests and other information and a description of the testing methods
used shall be provided to the Southland Regional Council within 20 working days following
receipt by the consent holder of the testing report. A summary of the results and other
information shall also be included in the Annual Environmental Report required under
Condition 26.
14. The coal-fired boiler shall be serviced at least once every year by a person competent in the
servicing of such boilers. This servicing shall include internal cleaning and replacement or
repair of damaged equipment and services as necessary, adjustment of the air to fuel ratio to
optimise energy efficiency and to minimise the emission of products of incomplete
combustion; and calibration and adjustment of boiler monitoring equipment consistent with
the intent of this consent. Servicing reports shall be prepared and copies shall be provided to
the Southland Regional Council on request. Confirmation that this servicing has been
undertaken, and at least a summary of the service reports shall be reported to the Southland
Regional Council in the Annual Environmental Report required under Condition 26.
15. The tonnage of coal burned per month, and the average and maximum one hour and 24-hour
coal consumption and gross energy input rates, shall be calculated each month based on
recorded steam production rates. This information shall be summarised in the Annual
Environmental Report required under Condition 26.
Processing Plant
16.
(a)
Discharges to air from the processing building shall be via bag filter through a stack
discharging vertically without impediment with minimum height above local ground
level of 15 metres, and at least two metres above the associated baghouse structure.
The minimum efflux velocity of exhaust air from the stack shall be 16 metres per
second. The concentration of total suspended particulate in the stack exhaust air shall
not exceed 15 milligrams per cubic metre corrected to 0 degrees Celsius, 101.3
kilopascals, on a dry gas basis. The emission rate of suspended particulate matter from
the stack shall not exceed 0.24 kilograms per hour.
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(b): Discharges to air from the drying building shall be via bag filter through a stack
discharging vertically without impediment with minimum height above local ground
level of 15 metres, and at least two metres above the associated baghouse structure.
The minimum efflux velocity of exhaust air from the stack shall be 15 metres per
second. The concentration of total suspended particulate in the stack exhaust air shall
not exceed 25 milligrams per cubic metre corrected to 0 degrees Celsius, 101.3
kilopascals, on a dry gas basis. The emission rate of suspended particulate matter from
the stack shall not exceed 0.38 kilograms per hour.
(c)
The consent holder shall install sampling ports in the drying and processing building
stacks in accordance with Australian Standard AS4323.1-1995 or equivalent method for
the provision and location of sampling ports, services, platforms and access as well as
provision of single phase electrical supply.
(d)
The concentration and emission rate of total suspended particulate matter in the
exhaust air of each stack shall be measured within three months of commencement of
processing and drying operations and thereafter at least every twelve months to confirm
compliance with conditions 14(a) and 14(b). Measurement of the discharge from each
stack shall occur when the associated processing or drying activity is operating at greater
than 75 percent of its maximum capacity. Testing, and analysis of samples as
appropriate, shall be carried out by an organisation and by a laboratory accredited by
IANZ for the tests and analyses involved.
(e)
The method of sampling and analysis for total particulate matter shall comply with US
Environmental Protection Agency (USEPA) Methods 5 or Method 17, ISO 9096:2003 or
ASTM D3685-98, or a similar method to the satisfaction of the Southland Regional
Council. The testing time for each sample shall be two hours continuous, and at least
three samples shall be collected. Results shall be adjusted to zero degrees Celsius, 101.3
kilopascals, on a dry gas basis, and as a mass emission from each stack expressed as
kilograms per hour.
(f)
The volumetric flow and temperature in the drier stack shall be determined and
recorded and results presented as a part of the particulate emission test report.
(g)
The results of emission tests and other information and a description of the testing
methods used shall be provided to the Southland Regional Council within 20 working
days following receipt by the consent holder of the testing report. A summary of the
results and other information shall be included the Annual Environmental Report
required under Condition 26.
Dust Control
17. All practicable measures shall be undertaken to minimise the discharge of fugitive dust,
including but not limited to:
using water sprays to dampen yard areas, internal roadways and material stockpiles
during dry, windy conditions, as necessary;
enclosure of conveyors and conveyor transfer points where practicable;
sweeping of any paved areas to remove loose or potentially dusty material;
covering of trucks transporting coal or briquettes; and
use of dust suppressants as necessary.
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18.
During the operation of this consent, the consent holder shall have and maintain:
(a)
an, at least 3 metre high, earth bund around the site in accordance with the Briquetting
Plant Site Layout plan submitted as Figure 2 (dated 15 November 2010) of the
application;
(b) the bund shall be topped with an at least 2 metre high wind-break fence, (deer fencing
covered by shade cloth or similar), and shall have trees planted and maintained
alongside in accordance with the Briquetting Plant Site Layout plan submitted as Figure
2 (dated 15 November 2010) of the application;
(c)
the bund shall be grassed immediately after construction, using hydro seeding or such
other method to achieve swift grass cover, and shall be watered regularly to ensure
grass cover is established and maintained. The bund shall be watered to suppress
potential dust discharge until a grass cover has been established
19. On-site vehicle speeds shall be restricted to not more than 20 kilometres per hour. A sign,
capable of being read at a distance of five metres, shall be erected at the site entrance to
inform all visitors of this requirement.
20. The height of lignite and briquette stockpiles shall not exceed 7 m above local ground level.
21. Complaints in relation to dust from activities on the site shall be dealt with on the following
basis:
(a)
the consent holder shall erect a sign on the mesh fence at the Craig Road frontage of the
site, such sign to contain the current name and contact telephone number of the person
who is to be responsible for receiving any complaints in relation to dust from activities
on the site;
(b)
the consent holder shall provide written notice to the owner of 153 Craig Road, 191
Pioneer Highway and Dongwha Patinna New Zealand Limited MDF plant of the current
name and contact telephone number of the person who is responsible for receiving any
complaints (in terms of Condition 21(a) above). Fresh written notice shall be given in
terms of this condition in the event that the current name and/or telephone number of
the person who is responsible for receiving any complaints changes in future.
Note: At
the time of drafting the landowners of the properties specified in this condition are:
153 Craig Road (N.W. Dumbar);
191 Pioneer Highway (D.J. & K.A. Falconer)
(c)
the consent holder shall keep a register of any complaints received in relation to dust
from activities on the site, identifying the time and date of the complaint, together with
an assessment of the cause of the complaint, and action taken;
(d)
as soon as practical after receipt of any complaint, and no later than five working days
after receipt, the consent holder shall submit a report to Environment Southland’s
Compliance Manager
([email address]) of the complaint and the matters listed
in Condition 21(c) above;
(d) within 24 hours of receiving a dust complaint the consent holder must report (via email and
direct telephone call) the complaint details to the current Technical and Environmental
Managers of Dongwha Patinna New Zealand Limited.
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Monitoring
22. (a) Dust deposition monitoring shall continue to occur in dust gauges sited at not less than
four locations around the consent holder’s property boundary and at a separate control
site. The location of the dust deposition gauges shall be agreed in writing by the
Southland Regional Council. The method of monitoring shall be ISO DIS-4222.2 or a
similar method to the satisfaction of the Southland Regional Council. Samples shall be
collected monthly and the monitoring results shall be included and summarised in the
Annual Environmental Report required under Condition 26.
(b) Dust control measures shall be implemented to maintain the rate of dust deposition at
the consent holder’s boundary at less than 4g/m2/30 days above the background
concentration measured at the control site. Any exceedance of this trigger level shall be
reported to Environment Southland’s Compliance Manager
([email address]),
including the likely reasons for exceedance and any remedial action undertaken.
23. (a)
Prior to the exercise of this consent the consent holder shall, unless otherwise agreed in
writing by Environment Southland’s Compliance Manager, establish an anemometer at
the site.
(i)
The anemometer shall be installed at a height of at least 3 metres above ground
level at a location exposed to the wind and free from any obstruction that has the
potential to significantly affect wind flow.
(ii)
Wind speed accuracy of measurement shall be within +/- 0.3 metres per second.
(iii) The anemometer shall be established, located and operated to the satisfaction of
Environment Southland’s Compliance Manager.
(iv) Wind speed and direction shall be continuously recorded with an averaging time for
each parameter of not more than 5 minutes. This data shall be recorded using an
electronic data logging system and shall be provided to Environment Southland’s
Compliance Manager at least once every three months.
(b)
The consent holder shall install a system to provide an alert to the site manager when
wind speeds may generate nuisance dust emissions. At the commencement of this
resource consent the alert wind speed shall be 5 m/s, but this may be amended in the
"Air Discharge Management & Contingency Plan" required by Condition 27.
24. (a)
The monitoring requirements established by Conditions 22 and 23 are suspended only
while the Plant is in “care and maintenance", and the boiler is not operational. Care and
maintenance is defined as:
No discharge to air from the briquette plant
No discharge to surface water from the briquette plant to Mine pit Lake 1
The boiler is not operational
All electric motors on site are spun over every 3 weeks
(b)
The monitoring requirements established by Conditions 22 and 23 recommence when
the briquette plant recommences operations or the boiler becomes operational.
(c)
The consent holder shall provide written notice to the Consent Authority at least 20
working days prior to the briquette plant recommencing operations and/or the boiler
becoming operational to advise the date for recommencement.
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Reporting
25. A record of all complaints made to the consent holder relating to emissions to air, other than
dust emissions (Condition 21), shall be maintained, and shall include:
the location where the contaminant or effect was detected by the complainant;
a description of the wind speed and wind direction, and rainfall if any, when the
contaminant was detected by the complainant;
the most likely cause of the emission or effect; and
any corrective action undertaken by the consent holder to avoid, remedy or mitigate
the emission or effect detected by the complainant.
The record of complaints shall be provided to Environment Southland’s Compliance Manager
([email address]) on request, and as part of the Annual Environmental Report
required under Condition 26.
26. The consent holder shall, no later than 30 September of each year, provide an Annual
Environmental Report to the Southland Regional Council setting out all monitoring and
reporting results required by conditions of consent and their interpretation by an
appropriately qualified person, including emission tests undertaken in relation to this consent
over the previous period. Where the result of any test or monitoring undertaken in relation to
this consent exceeds the relevant limit or does not comply with the relevant condition, then
the steps that were taken to rectify the non-compliance shall be provided.
Management and Contingency Plan
27. (a)
The consent holder shall prepare, through the services of an independent appropriately
qualified person(s), an "Air Discharge Management & Contingency Plan" (the Plan). The
purpose of the Plan shall be to:
(i)
describe the operation of the plant in relation to its potential impacts on the air
environment;
(ii) define the actions to be taken to ensure compliance with all conditions of this
consent, or in response to any incident which may impact adversely on the
environment;
(iii) describe how representative samples of coal will be taken to give a composite
sample for analysis; and
(iv) present contingency plans in the event of mechanical or electrical or other
problems that provide for continuing operation of processes and/or timely
shutting down of processes as the case may be, to ensure conditions of this
consent are not breached.
(b)
The Plan shall include details of the steps to be taken to correct any non-compliances
identified.
(c)
The plan shall be provided to Environment Southland’s Compliance Manager within
three months of the commencement of this consent.
(d)
The Plan shall be reviewed at least on an annual basis and it may be amended at any
time during the period of this consent as the independent qualified person(s) considers
appropriate to improve management and contingency procedures.
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(e)
If/when the Plan is amended, a copy of the amended version, (or amended sections)
shall be sent to Environment Southland’s Compliance Manager as soon as practicable
following amendment.
(f)
Amendments to the Plan shall be referenced in the Annual Environmental Report
required under Condition 26.
28.
The consent holder shall pay an administration and monitoring charge to the Southland
Regional Council collected in accordance with Section 36 of the Resource Management Act,
payable in advance on the first day of July each year. This charge may include the costs of
inspecting the site four times during the first year of operation, and once per year thereafter.
The purpose of the inspections is to check compliance with the conditions of this resource
consent and to check odour and dust emissions from the site.
Review of Consent
29. The Council may, in accordance with section 128 and 129 of the Act, serve notice, during the
period 1 February to 30 September each year, of its intention to review conditions for the
purpose of:
(a)
dealing with any adverse effect on the environment which may arise from the exercise
of the consent and which it is appropriate to deal with at a later stage;
(b)
requiring the adoption of the best practicable option to remove or reduce any adverse
effect on the environment;
(c)
requiring the adoption of measures to reduce adverse effects of particulate matter or
sulphur dioxide indicated by monitoring in accordance with conditions of this consent;
and/or
(d)
modifying or extending any of the monitoring requirements of this consent.
Reissued 17 November 2015 following the addition of Condition 24.
for the
Southland Regional Council
H Lennox
Consents Manager
