surface water discharge monitoring report for inspection ... · temperature probe (method 2550)...

Email: [email protected] www.enviro-consult.com

Registered Office: Parnell House, 19 Quinsboro Road, Bray, Co. Wicklow A98 XV04. Registered Number 243 412 Directors: Robert B. Sutcliffe, Ronan T. Sutcliffe

Environmental Services for Industry Including – ► Air, Noise & Water Monitoring ► Energy & Water use reduction ► Bund Testing ► IPC/IED/Waste Licence Compliance ► Environmental Management Systems to ISO 14001 ► EIS & Planning ► Air & Noise Modelling ► Occupational Dust & Noise Affiliations & Accreditations ► ISO9001:2008 Registration No. 2015/2170 ► ISO14001:2015 Registration No. 2012/1427 ► MCERTS Certified personnel for stack testing ► Member of Royal Society for Prevention of Accidents

Bray (Ireland) 01 276 1428 Cork (Ireland) 021 453 6155 Lisburn (N. Ireland) 028 9262 6733 Birmingham (GB) 0121 673 1804

Surface Water Discharge

Monitoring Report

for

Sleever International Ltd

IPC Licence P0674-01

Document Number 593-46 v1.01

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http://www.enviro-consult.com/

Sleever Ltd. Surface Water Monitoring Report Biannual 2 2017

Environmental Efficiency of 12 Document No.: 593-46 v1.01

Document Lead Sheet

Clie

nt

Organisation Sleever International

Site Dublin

Client contact Sydney Oosthuizen

Permit/Lic No. (if applic) P0674-01

Order Proposal number N/A

Client PO or other reference N/A

Del

iver

able

Report title Surface Water Monitoring Report Biannual 1 2017

Document number 593-46

Report template SR10 Std Groundwater Monitoring template

Type of document Report

Method Statement 593-01 Date written 25/02/2016

Format for issue PDF

Ap

pro

val &

Issu

e

Site visit by JC Date last site visit

22/11/2017

Document author VB Date written 29/11/2017

Approved by RD Date approved 30/11/2017

Report version nr 1.01

Issued by VB Date report issued

30/11/2017

Doc issued to As per client info

Method issue Email

Act

ion

All results satisfactory No

If not satisfactory, further testing required N/A

If satisfactory, when is next test due? 2018

Key to personnel

RBS Bob Sutcliffe, Director, CEng, MIMechE, MIEI,CEM

RTS Ronan Sutcliffe, Director, Dip. Environmental Protection

GB George Byrne, MSc Biosystems Engineering

RD Richard Deeney, B.Sc. AIEMA

JC John Cullen, BAgSc, P.Grad.Dip Environmental Engineering

VB Valerie Browne, BSc Environmental and Earth System Science

Conditions relating to the issue of this report: 1. No alteration to this report by third parties is permitted 2. Where this report is reproduced, it shall only be reproduced in full. 3. Reports remain the property of Environmental & Efficiency Consultants (Ireland) Limited until paid for in full.

Report History 1.00 First Issue 1.01 Graph change

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Table of Contents 1 Introduction ................................................................................................................ 4

2 Executive summary ..................................................................................................... 5

3 Analysis Methods ........................................................................................................ 6

4 Discussion .................................................................................................................... 7

5 Conclusion ................................................................................................................... 9

Table 1-1 Monitoring requirements .............................................................................. 4

Table 3-1 Analysis Methods ........................................................................................... 6

Table 4-1 Past results ..................................................................................................... 7

Figure 4-1: Parameter trends for BOD, COD and Temperature .................................... 8

Figure 4-2: Parameter trends for Conductivity and pH2 ................................................ 8

Appendix 1 Certificates of Analysis .............................................................................. 10

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1 Introduction

As part of the IPC licence (No. 674), the company must monitor their emissions to surface water.

Condition 9.1.2 states that

9.1.2 The licensee shall monitor surface water discharge in accordance with Schedule 4(i) Surface Water Discharge Monitoring of this licence. A report on the results of this monitoring shall be submitted to the Agency biannually and a summary report shall be submitted as part of the AER

Environmental Efficiency Consultants Ltd was commissioned to conduct this monitoring and compile the necessary reports.

The relevant schedule of the licence requires that samples be collected as follows.

Table 1-1 Monitoring requirements

Emission Point Collection Frequency Substances analysed for

SW1 Bi-Monthly BOD

COD

Temperature

pH

Conductivity

There are no limits specified in the Licence. Warning level thresholds have been agreed with the Agency and are shown in the results table. It has been proposed that 80% of the concentrations given in the Second Schedule Part 1 of S.I. No. 254 of 2001 for COD and BOD (mentioned above) be taken as the warning levels for the surface water discharges from the site (Suspended Solids are not in the scope of monitoring requested by the IPC Licence), i.e.: • Warning level for COD: 100mg/L • Warning level for BOD: 20mg/L When the concentrations of COD and/or BOD are found to be above these warning levels, then an investigation will be carried out to identify the cause of the high result.

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2 Executive summary

Sample Number 593/94 593/95 593/96 Limits/

Warning

Levels Period Jul/Aug

(Bi-Monthly 4) Sept/Oct

(Bi-Monthly 5) Nov/Dec

(Bi-Monthly 6)

BOD (mg/L) 3 27 97 20

COD (mg/L) 114 154 1198 100

Conductivity (μS/cm) 314 213 294 N/A

pH (pH Units) 8.2 7.1 8.1 N/A

Temperature (˚C) 19.1 13.4 15.5 N/A

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3 Analysis Methods

The following table describes the methods used for the various analyses:

Table 3-1 Analysis Methods

Parameter Method Reference

pH Probe (Method 4500-H+ B) "Standard methods for the examination of water and waste water"

Conductivity Probe (Method 2510) "Standard methods for the examination of water and waste water"

Temperature Probe (Method 2550) "Standard methods for the examination of water and waste water"

COD Closed reflux colorimetric (Method 5220 D) "Standard methods for the examination of water and waste water"

BOD Respirometric (Method 5210 D) "Standard methods for the examination of water and waste water"

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4 Discussion

The IPC licence does not define any limits for the parameters that are monitored at Sleever International Ltd. Comparative limits of 20 mg/l and 100 mg/l for BOD and COD respectively have been referred to. Bi-monthly monitoring could not be undertaken in Jan/Feb 2017 as the outfall location was dry during this period. In Sept/Oct and Nov/Dec 2017, BOD levels recorded at SW1 during the bi-monthly monitoring periods exceeded warning limits. In Jul/Aug, Sept/Oct and Nov/Dec 2017, COD levels recorded at SW1 exceeded warning limits. For the purpose of illustrating trend past results from Bi-monthly 4 2015 to Bi-monthly 6 2017 have been presented in the table below.

Table 4-1 Past results

Jul/ Aug

2015

Sep/ Oct

2015

Nov/ Dec

2015

Jan/ Feb

2016

Mar/Apr

2016

May/ Jun

2016

Jul/ Aug

2016

Sep/Oct

2016

Nov/Dec

2016

Jan/ Feb

2017

Mar/Apr

2017

May/Jun

2017

Jul/ Aug

2017

Sept/Oct

2017

Nov/Dec

2017

Units 593/ 85

593/ 86

593/ 87

593/ 88

593/ 89

593/ 90

593/ 91

593/ 92

593/93

593/941

593/95

593/ SW01

593/ SW01

593/ SW01

593/ SW01

Warning Levels

BOD mg/L 47.0 0.0 15.0 0.0 1.0 9.0 0.0 7.0 0.0 - 0.0 37.0 3 27 97 20

COD mg/L 267.0 45.0 65.0 <15.0 222.0 124.0 62.0 48.4 76.4 - 80.6 61.1 114 154 1,198 100

Conductivity μS/cm 310 356 470 330 470 335 260 252 309 - 294.0 148.2 314 213 294 N/A

pH pH

Units 7.0 7.9 6.8 6.6 8.3 8.0 8.1 7.2 8.3 - 8.1 8.2 8.2 7.1 8.1 N/A

Temperature ˚C 22.4 11.4 9.1 15.9 11.4 17.2 20.10 21.4 7.8 - 9.8 18.1 19.1 13.4 15.5 N/A

1 Samples were not taken Jan/Feb 2017 as outfall location was dry during this monitoring period

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Figure 4-1: Parameter trends for BOD, COD and Temperature2

Figure 4-2: Parameter trends for Conductivity and pH2

2 Jan/Feb 2017 Sample point dry – no results in graph

0

5

10

15

20

25

0

200

400

600

800

1000

1200

1400

⁰C

mg/

L

Period

COD mg/L

BOD mg/L

Temp ˚C

0

1

2

3

4

5

6

7

8

9

0

50

100

150

200

250

300

350

400

450

500

pH

Un

itsuSc

m

Period Conductivity

pH

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5 Conclusion

BOD and COD exceeded the warning level of 20mg/l and 100mg/l respectively during the monitoring period Sept/Oct and Nov/Dec 2017. COD also breached its trigger value during bi-monthly 3 Jul/Aug 2017 monitoring. Bi-monthly 6 monitoring in Nov/Dec breached both BOD and COD by significant concentrations. The technician onsite noted shallow water level and a high volume of sludge and detritus present, it is likely that this is the cause of the drastic breach for both BOD and COD above warning levels and could potentially have been the cause of breach of trigger values in the two previous monitoring periods. Efforts should be made to clear the monitoring point of all debris and loose sludge. All other parameters were under the warning level thresholds which have been agreed with the agency during this period. It is noted that the method for setting the warning level does not comply with the EPA’s Guidance on the Setting of Trigger Values for Stormwater Discharges to Off-site Surface Waters at EPA IPPC and Waste Licensed Facilities. It is recommend to update trigger levels in line with this guidance to ensure appropriate warning and action levels are set and to ensure an appropriate response to any potential environmental incidents.

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Appendix 1 Certificates of Analysis

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surface water discharge monitoring report for inspection ... · temperature probe (method 2550)...

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