07 - April 23, 2019 County Council Agenda Package
KETTLE CREEK PUBLIC SCHOOL WHAT ARE THE 5 YEAR UTILIZATION RATES? BY HEATHER DERKS
AS SCHOOL COUNCIL CO-CHAIR And leader of the Hope Starts Junior Gardeners program, I have been working on putting in a garden at Kettle Creek.
OUR HOME AND SCHOOL IS ALSO RAISING FUNDS FOR PLAYGROUND EQUIPMENT
IN ORDER TO PLAN FOR THOSE THINGS
Utilization rates would help. It would be great to find out how many students are actually enrolled or projected to enroll for the next five years so that we can plan our initiatives
accordingly.
, 2019
TH
A $5 MILLION EXPANSION BEGINS APRIL 30
One would think that the school board would be able to provide such a basic background piece for this project as the immediate 5 year utilization needs.
SO I ASKED MYSELF,
How did they make the decision to go with the size, scope, and design of the $5 million investment they are about to break ground on, and concluded that the accurate projections must
be somewhere in the review materials.
Holding zone shown as leaving this year
EPAR01 Final Staff Report dated March 27, 2017
From the Elgin County French Immersion Attendance Area Review Initial Report dated September 26, 2017
Shows new school openingHolding zone shown leaving Port Stanley after 2019
Dated after new school declined
From the city planner: 709 units in the holding zone equates to approximately 180 formula
There are also plenty of new developments in the Port Stanley area that will be designated to that school as well.
At the March 27, 2018 board meeting, it was made clear to trustees that once the expansion at Kettle Creek was approved, consultation was to be held with the community as to the design
and scope. As school council co chair, I can tell you that no offer of consultation was presented to me. Was the county or Central Elgin provided the opportunity to be consulted?
design phase.
enrolment picture.
years for Kettle Creek.
putting on is adequate to accommodate the needs of our
board to provide the enrolment projections for the next five
My request is for the county of Elgin Council to ask the school
My concern is that I have no idea if the expansion that they are
I am also concerned that they did not consult with us as to the
Thank you very much for letting me bring this to your attention.
1)
2)
3)
Ontario Government Announces Broadband and Cellular Strategy in 2019 Budget
Yesterday, Finance Minister Vic Fedeli delivered the Ontario 2019 Budget:
Theprovincial budget addressed the importance of digital
connectivity in fostering economic growth as the government announced its plansto
invest $315 million over the next five years to ensuring communities across Ontario have
access to critical broadband and cellular connectivity. The newly announced
Broadband and Cellular Strategy will focus on improving broadband services to
-first approach
to improving online government services. Full details of the Broadband and Cellular
Strategy will be released later this year.
Southwestern Integrated Fibre Technology Inc. (SWIFT) applauds the Government of
commitment to the delivery of greater access to broadband services across Ontario.
-
intensive technology is transforming the way we live, work and entertain ourselves and
is central to eco
their geographic location, have equal access to information, education, healthcare
and job opp
SWIFT will continue to work with all levels of government and other stakeholder groups
to maximize broadband infrastructure investments in Southwestern Ontario.
SWIFT, a non-profit regional broadband project, was initiated by the Western Ontario
to subsidize the construction of an open-access, high-
speed fibre optic broadband network in Southwestern Ontario, Caledon and the
Niagara Region.
rching goals of narrowing the digital
divide and making small-town Ontario more competitive in the information economy.
For more information about SWIFT, please contact:
Media Relations
Communications Manager
melissa.obrien@swiftnetwork.ca
Contributing Members:
www.swiftnetwork.ca
PROVINCIAL BUDGET 2019: PROTECTING WHAT MATTERS MOST
1.BUDGET AND RELATED DOCUMENTS
2.PROVINCIAL BUDGET 2019 PRIORITIES
3.MUNICIPAL HIGHLIGHTS
PROPERTY TAX AND ASSESSMENT SYSTEM
INFRASTRUCTURE
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2169 Queen Street East, 2 Floor, Toronto, Ontario M4L 1J1 T: 416-362-9001 F: 416-362-9226
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FUNDING
HEALTHCARE
ENVIRONMENT
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HOUSING STRATEGY
OTHER
Ќ
OTHER INITIATIVES
SOCIAL ASSISTANCE AND HEALTH CARE
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Ѝ
CULTURE
EMPLOYMENT
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EDUCATION
Ў
ALCOHOL, GAMING, AND CANNABIS
PROVINCIAL FISCAL SUSTAINABILITY AND TRANSPARENCY
o
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OTHER
Џ
А
4.PROVINCIAL ECONOMY
OVERVIEW (PP. 241, 248-250)
INFLATION (P. 244)
INTEREST RATES (P. 319)
GDP (P. 244)
Б
EMPLOYMENT (P.252)
HOUSEHOLD INCOME AND DEBT (P. 257)
CANADIAN DOLLAR (P. 248)
5.PROVINCIAL FINANCES
DEBT (PP. 313-315)
DEFICIT (P. 261)
В
Medium-Term Fiscal Plan and Outlook ($B)
%
Table 3.1 (p. 262)
change
2018/19 2019/20 2020/21 2021/22 2019/22
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Expense
Programs 150.0 150.1 151.9 153.8 2.53%
Interest on Debt 12.5 13.3 13.7 14.4 15.2%
ƚƷğƌ 9ǣƦĻƓƭĻ ЊЏЋ͵Ў ЊЏЌ͵Ѝ ЊЏЎ͵Џ ЊЏБ͵Ћ Ќ͵ЎЊі
Reserve - 1.0 1.0 1.0
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Net Debt (as % of GDP) 40.2 40.7 40.7 40.6
Accumulated Deficit (as % of GDP) 25.8 26.0 25.8 25.5
Percentage column added
Prepared by:
ЊЉ
March 29, 2019
Mark Smith
Ministry of the Environment, Conservation and Parks
733 Exeter Road
London, ON N6E 1L3
Dear Mr. Smith;
Re: Annual Wastewater Report
Elgin Manor Wastewater Treatment Plant
The Ontario Clean Water Agency is the Operating Authority for the Elgin Manor Wastewater Treatment
Plant on behalf of the County of Elgin. The system is operated under Environmental Compliance
Approval 1949-7GDHQ8. Please find attached the 2018 Annual Report for the Elgin Manor Wastewater
Treatment Plant.
Feel free to contact me should you require any additional information regarding this report. I can be
reached at 226-377-3563.
Sincerely,
Cindy Sigurdson
Safety, Process and Compliance Manager
Ontario Clean Water Agency
cc. Brian Lima, County of Elgin
Jim Carter, County of Elgin
Dale LeBritton, Regional Hub Manager (OCWA)
Mike Taylor, Senior Operations Manager (OCWA)
Angela Stroyberg, Water Inspector (MECP)
ELGIN MANOR WASTEWATER TREATMENT PLANT
ANNUAL REPORT
January 1 to December 31, 2018
Prepared By:
Table of Contents
Section 1: Overview....................................................................................................................... 1
Section 2: Monitoring Data............................................................................................................ 2
Section 3: Operating Problems and Corrective Actions...............................................................12
Section 4: Maintenance...............................................................................................................12
Section 5: Effluent Quality Assurance .......................................................................................... 12
Section 6: Calibration and Maintenance ...................................................................................... 13
Section 7: Effluent Objectives ...................................................................................................... 13
Section 8: Sludge Management ................................................................................................... 14
Section 9: Community Complaints ............................................................................................... 14
Section 10: Bypass, Spills, and Abnormal Discharges .................................................................. 14
Section 11: Summary ................................................................................................................... 14
Appendix A: Detailed Monthly Compliance and Loading Data
Section 1: Overview
The Elgin Manor Wastewater Treatment Plant (WWTP) is located behind the Elgin Manor Home for the
Aged at 39232 Fingal Line, R.R. #1 in Southwold Township, County of Elgin.
The Elgin Manor WWTP has been in operation since 2006 and uses the treatment process known as
Biological Nutrient Removal (BNR).
Process Details
Wastewater is directed into the sewage pump station from the Elgin Manor Home and the Southwold
Public School via gravity. Wastewater is then pumped from the sewage pump station through a screen,
to the distribution box connected to the equalization tanks. This distribution box also accepts filter
backwash from the tertiary treatment system.
The raw sewage and backwash water from the equalization tank(s) are pumped to the secondary
treatment system which starts at the splitter box and distributes the flow to either or both trains. Each
train consists of an anoxic tank, aeration tank, re-circulation pump chamber, and clarifier. The anoxic
and aeration tanks combined provide carbonaceous biochemical oxygen demand removal, nitrification
and denitrification. The anoxic tank is provided with a submersible mixer to ensure the tank contents
remain in suspension. Nitrified mixed liquor is returned from the end of the aeration tank to the anoxic
process where it is denitrified, converting nitrate to nitrogen gas. The remaining phosphorus that hasn’t
been removed biologically is chemically precipitated using alum addition to the aeration tank. The
aeration tank is equipped with a course bubble aeration system. The next stage is clarification in which
the precipitate forms on the bottom of the clarifier and is pumped to the anoxic tank and returned as
activated sludge or is wasted to the sludge tanks.
From the clarifier, the liquid is then directed to the tertiary treatment process which includes the filter
and disinfection processes. There are two gravity sand filters with a tri-media bed. The filter is cleaned
by doing a backwash, which occurs automatically based on a timer. The effluent from the filters enters
the clearwell and is used in the UV system for recirculation and based on level, will be discharged from
the plant by the effluent pumps. The UV cooling pumps direct the effluent through the UV system to
provide adequate disinfection prior to being discharged to Dodd Creek. This effluent is used for
backwash water as well. The backwash water is directed to the mudwell and returns to the equalization
tank for processing.
Waste Activated Sludge is removed from each clarifier bottom through a pump where it is directed to
the Sludge Management System. The sludge is aerobically digested and thickened by pumping the clear
liquid off when needed. Once at capacity, the sludge is hauled off site for further processing.
Two 7.5 horse power rotary lobe blowers supply low pressure air to the equalization tanks, aeration
tanks, sludge tanks, skimmer in the clarifier, air scour for sand filters and clear well.
All operations are controlled by a programmable logic controller (PLC). A data logging computer system
with local monitoring capability is used to monitor, trend, and record select process parameters.
Laboratory space located at the WWTP allows for basic laboratory analyses to be conducted by the plant
operator.
Page 1 of 14
Section 2: Monitoring Data
Sampling and Testing Procedures:
Raw sewage is sampled once per month and tested for BOD and total suspended solids and weekly for
5
total phosphorus and total Kjeldahl nitrogen. The raw samples are collected as grab samples.
Final effluent is sampled weekly and tested for cBOD5, total suspended solids, total phosphorus, and
total (ammonia +ammonium) nitrogen. Samples are collected using an automatic composite sampler
and collected over a twenty-four hour period. As well, a weekly grab sample for E. coli is collected. In
house grab samples are collected and tested for dissolved oxygen (weekly), pH and temperature (thrice
weekly).
In-house tests are conducted on a weekly basis on throughout the treatment process to check plant
performance and to make any operational changes required.
All chemical and microbiological sample analyses are conducted by SGS Lakefield Research. Trained and
Certified OCWA operators perform the in-house testing. All samples are collected and tested as per the
requirements of the Environmental Compliance Approval.
Raw Sewage Quality
The annual average influent sewage BODconcentration to the plant was 219.8mg/L with a maximum
5
concentration of 406mg/L. The average concentration of BODhas decreased 26% from 2017, refer to
5
Chart 1. The annual average BODloading at the plant was 8.5kg/d for 2018. Refer to Appendix A for
5
monthly concentrations and loadings.
Chart 1. Monthly BOD concentrations for 2018 compared with 2017 concentrations.
5
600
500
400
300
2017 BOD5 (mg/L)
200
2018 BOD5 (mg/L)
Influent BOD5 (mg/L)
100
0
Jul
Jan
Jun
Oct
Apr
FebSep
Avg
Dec
Aug
Nov
Mar
May
Month
Page 2 of 14
The annual average influentsewage total suspended solids (TSS) concentration to the plant was
149.3mg/L, which is a 16.3% decrease from 2017 (refer to Chart 2). The annual average TSS loading to
the plant was 5.8kg/day in 2018. Refer to Appendix A for monthly concentrations and loadings.
Chart 2. Monthly TSS concentrations for 2018 compared with 2017 concentrations.
600
500
400
300
2017 TSS (mg/L)
200
2018 TSS (mg/L)
Influent TSS (mg/L)
100
0
Jul
Jan
Jun
Oct
Apr
FebSepAvg
Dec
Aug
Nov
Mar
May
Month
The annual average influent sewage total phosphorus (TP) concentration to the plant was 3.1mg/L,
which is a 31.5% decrease from 2017 (refer to Chart 3). The average TP loading to the plant was
0.12kg/day in 2018. Refer to Appendix A for monthly concentrations and loadings.
Chart 3. Monthly TP concentrations for 2018 compared to 2017 concentrations.
7
6
5
4
3
2017 TP (mg/L)
2018 TP (mg/L)
2
Influent TP (mg/L)
1
0
Jul
Jan
Jun
Oct
Apr
FebSep
Avg
Dec
Aug
Nov
Mar
May
Month
Page 3 of 14
The annual average influentsewage nitrogen concentration (as represented by TKN) to the plant was
25.6mg/L, which is a decrease by 26.4% from 2017 (refer to Chart 4). The average TKN loading to the
plant was 0.99kg/day. Refer to Appendix A for monthly concentrations and loadings.
Chart 4. Monthly TKN concentrations for 2018 compared to 2017 concentrations.
60
50
40
30
2017 TKN (mg/L)
20
2018 TKN (mg/L)
Influent TKN (mg/L)
10
0
Jul
Jan
Jun
Oct
Apr
FebSepAvg
Dec
Aug
Nov
Mar
May
Month
Flows
3
The total treated flow in 2018 was 14,114m, which is a 13% increase to 2017 flows. The annual average
3
/day. Refer to Chart 5 below. The plant is operating at 38.7% capacity. Due to
daily flow was 38.7m
the low flow rates the plant is only operating with one train, which is at 77.4% of its capacity. In 2018,
there have been high peak flows exceeded the rated capacity of the one treatment train. The overall
decrease in the influent concentrations may indicate that the wastewater is being diluted by a water
source (potable or infiltration). There have been no changes to the number of residences at the home
and the no new connections to the system. In 2018, there were 36 days where the flow exceeded the
3
one treatment train’s rated capacity of 50m/d versus seven days in 2017. Refer to Appendix A for
detailed flow data.
Chart 5. Average Daily Raw (influent) flows for 2018 compared to 2017 flows.
Page 4 of 14
450
400
350
2017 Influent Flow
300
(m3/d)
250
2018 Influent Flow
200
(m3/d)
150
Rated Capacity
Influent Flow (m3/d)
(m3/d)
100
50Peak Flow (m3/d)
0
Jul
Jan
Jun
Oct
Apr
FebSep
Avg
Dec
Aug
Nov
Mar
May
Month
3
The total effluent discharged from the plant in 2018 was 14,056m, with the annual average daily flow
3
being 38.5m/day. There was a 12.5% increase from 2017 average daily flows. Refer to Chart 6. Refer
to Appendix A for detailed flow data.
Chart 6. Average Daily Effluent flows for 2018 compared to 2017 flows.
50
45
40
35
30
25
2017 Effluent Flow (m3/d)
20
2018 Effluent Flow (m3/d)
15
Effluent Flow (m3/d)
10
5
0
Jul
Jan
Jun
Oct
Apr
FebSep
Avg
Dec
Aug
Nov
Mar
May
Month
Page 5 of 14
Effluent Limits
Detailed analytical data is provided in Appendix A. Table 1 summarizes the monthly average
concentrations and loading ranges.
Table 1. Monthly average effluent result ranges compared to the effluent limits prescribed in the
Environmental Compliance Approval.
Monthly Monthly Monthly
Monthly
Average Average Average
Average
Parameter Effluent Result loading Loading
Effluent Limit
Ranges limit Ranges
(mg/L)
(mg/L)(Kg/d) (Kg/d)
cBOD10 <2 – 2.8 1.0 0.06- 0.13
5
Suspended Solids10 <2 – 2.3 1.0 0.06- 0.10
Total Phosphorus 0.3(a) 0.04 – 0.06 0.3 0.001 – 0.002
1.0(b) 0.05 – 0.05 0.1 0.002 – 0.002
Total (Ammonia + 3.0(a) 0.10 – 0.75 0.3 0.003 – 0.03
Ammonium) Nitrogen
5.0(b) 0.18 – 1.8 0.5 0.007 – 0.08
E. coli 200 1.2 – 6.8 - -
Dissolved Oxygen* >4 7.38 – 9.45 - -
pH (all results) 6-9.5 6.64 – 8.61 - -
Temperature (all results) n/a 14.3 – 27.1 - -
o
NOTE: (a) limit applies when receiving stream temps are above 5C
o
(b) limit applies when receiving stream temps are below 5C
*Dissolved oxygen expressed as minimum
Discussion on Monitoring Data as Compared to the Effluent Limits
The effluent cBOD is monitored on a weekly basis at the Elgin Manor WWTP. Overall the plant has
5
provided effective treatment as there have been no monthly average exceedances in 2018 for cBOD.
5
The compliance limit is cBODis 10mg/L. The annual average in 2018 was 2.2mg/L, which is a 8.1%
5
decrease from the results in 2017, refer to Chart 7. Refer to Appendix A for monthly concentrations and
loadings.
Page 6 of 14
Chart 7. Effluent cBODconcentrations for 2018 compared to 2017 concentrations.
5
12
10
8
2017 cBOD5 (mg/L)
6
2018 cBOD5 (mg/L)
4
Objective (mg/L)
Effluent cBOD5 (mg/L)
Limit (mg/L)
2
0
Jul
Jan
Jun
Oct
Apr
FebSep
Avg
Dec
Aug
Nov
Mar
May
Month
The effluent Total Suspended Solids (TSS) is monitored on a weekly basis at the Elgin Manor WWTP.
Overall the plant has provided effective treatment as there have been no monthly average exceedances
in 2018 for TSS. The compliance limit for TSS is 10mg/L. The annual average in 2018 was 2.1mg/L,
which is a decrease from 2017 by 2.7%, refer to Chart 8. Refer to Appendix A for monthly
concentrations and loadings.
Chart 8. Effluent TSS concentrations for 2018 compared to 2017 concentrations.
12
10
8
2017 TSS (mg/L)
6
2018 TSS (mg/L)
4
Objective (mg/L)
Effluent TSS (mg/L)
Limit (mg/L)
2
0
Jul
Jan
Jun
Oct
Apr
FebSepAvg
Dec
Aug
Nov
Mar
May
Month
Page 7 of 14
The effluent Total Phosphorus (TP) is monitored on a weekly basis at the Elgin Manor WWTP. Overall
the plant has provided effective treatment as there have been no monthly average exceedances in 2018
for TP. The compliance limit for TP is 0.3mg/L and 1.0mg/L depending on receiving stream temperature.
The annual average in 2018 was 0.05mg/L, which is a 31.5% decrease from the results in 2017, refer to
Chart 9. Refer to Appendix A for monthly concentrations and loadings.
Chart 9. Effluent TP concentrations for 2018 compared to 2017 concentrations.
1.2
1
0.8
2017 TP (mg/L)
0.6
2018 TP (mg/L)
0.4
Objective (mg/L)
Effluent TP (mg/L)
Limit (mg/L)
0.2
0
Jul
Jan
Jun
Oct
Apr
FebSepAvg
Dec
Aug
Nov
Mar
May
Month
The effluent Total Ammonia (NH3+NH4) Nitrogen (TAN) is monitored on a weekly basis at the Elgin
Manor WWTP. Overall, the plant has provided effective treatment as there have been no monthly
average exceedances in 2018 for TAN. The TAN compliance limits are 3mg/L and 5mg/L depending on
receiving stream temperature. The annual average in 2018 was 0.53mg/L, which is an increase from
2017 by 85%, refer to Chart 10. This large percentage change in 2018 is attributed to the higher flows
received to the plant. Refer to Appendix A for monthly concentrations and loadings.
Chart 10. Effluent TAN concentrations for 2018 compared to 2017 concentrations.
Page 8 of 14
6
5
4
2017 TAN (mg/L)
3
2018 TAN (mg/L)
2
Objective (mg/L)
Effluent TAN (mg/L)
Limit (mg/L)
1
0
Jul
Jan
Jun
Oct
Apr
FebSep
Avg
Dec
Aug
Nov
Mar
May
Month
The effluent E. coli is monitored on a weekly basis at the Elgin Manor WWTP. Overall, the plant has
provided effective treatment as there have been no monthly geometric mean exceedances in 2018 for
E. coli. The compliance limit for E. coli is 200cfu/100mL. The annual geometric mean in 2018 was
3.5cfu/100mL, which is an increase from 2017 by 16.5%, refer to Chart 11. The Elgin Manor WWTP UV
system has provided effective disinfection. Refer to Appendix A for monthly concentrations.
Chart 11. Effluent E. coli concentrations for 2018 compared to 2017 concentrations.
250
200
2017 E. coli
150
(cfu/100mL)
2018 E. coli
100
(cfu/100mL)
50
Objective
(cfu/100mL)
Effluent E. coli (cfu/100mL)
0
Limit (cfu/100mL)
Jul
Jan
Jun
Oct
Apr
FebSep
Dec
Aug
Nov
Mar
May
GeoMean
Month
The effluent Dissolved Oxygen (DO) is monitored weekly at a minimum at the Elgin Manor WWTP.
Overall, the plant has provided effective treatment as there have been no non-compliances in 2018 for
DO. The minimum requirement for DO in the effluent is 4mg/L. The annual average of DO in 2018 was
Page 9 of 14
9.0mg/L, which is an increasefrom 2017 by2.4%, refer toChart 12. Refer to Appendix A for monthly
concentrations.
Chart 12. Effluent DO concentrations for 2018 compared to 2017 concentrations.
10
9
8
2017 Minimum DO
7
(mg/L)
6
2018 Minimum DO
5
(mg/L)
4
Objective (mg/L)
3
Effluent DO (mg/L)
2
Limit (mg/L)
1
0
Jul
Jan
Jun
Oct
Apr
FebSep
Dec
min
Aug
Nov
Mar
May
Month
The effluent pH is monitored thrice weekly at a minimum at the Elgin Manor WWTP. Overall the plant
has provided effective treatment as there have been no results below or above the compliance limits of
6.0-9.5 in 2018. The pH is required to be maintained between 6.0-9.5 at all times. The annual average
pH in 2018 was 7.31, which is an increase from 2017 by 0.7%. Refer to Chart 13 for the monthly
minimum pH readings and Chart 14 for the monthly maximum pH readings. The plant has effectively
maintained the pH within the compliance range. Refer to Appendix A for monthly concentrations.
Chart 13. Effluent pH minimum readings for 2018 compared to 2017 concentrations.
8
7
6
5
4
2017 Minimum pH
3
2018 Minimum pH
Effluent pH
2
Objective & Limit
1
0
Jul
Jan
Jun
Oct
Apr
FebSep
Decmin
Aug
Nov
Mar
May
Month
Page 10 of 14
Chart 14. Effluent pH maximum readings for 2018 compared to 2017 concentrations.
10
9
8
7
6
2017 Maximum pH
5
2018 Maximum pH
4
Effluent pH
Objective
3
2
Limit
1
0
Jul
Jan
Jun
Oct
Apr
FebSep
Dec
Aug
Nov
Mar
MayMax
Month
The effluent temperature is monitored thrice weekly at a minimum at the Elgin Manor WWTP. The
temperature of the plant is affected by seasonal changes, however this is limited since the tanks are
housed within a greenhouse structure. The effluent temperatures were maintained between 14.3 –
o
27.1C in 2018, this allows for biological activity to remain active with minimal changes to the operation
of the WWTP. Refer to Chart 15 for average monthly temperatures. Refer to Appendix A for monthly
concentrations.
Chart 15. Effluent temperature for 2018 compared to 2017.
30
25
20
15
2017 Temperature (oC)
10
2018 Temperature (oC)
5
Effluent Temperature (oC)
0
Jul
Jan
Jun
avg
Oct
Apr
FebSep
Dec
Aug
Nov
Mar
May
Month
Page 11 of 14
Overall, the Elgin Manor WWTP has met all monthly average compliance limits set out in the
Environmental Compliance Approval. The plant is operating at 38.7% of its rated capacity, therefore
has no issue meeting the loading limits (refer to Appendix A).
Section 3: Operating Problems and Corrective Actions
In general, the Elgin Manor WWTP has operated well in 2018.
The plant can upset quickly which has been attributed to its small size, but with this it can also be
rectified quickly. Careful monitoring of the plant by the operators provides information as to issues that
might be occurring and the operators can make adjustments to maintain compliance.
Alkalinity has been an issue in the past, monitoring influent and effluent alkalinity concentrations weekly
has proven to be effective in reducing the alum used while still meeting the compliance limits for total
phosphorus.
Flows have been a challenge for operators, there has been an overall increase by 13%. There have been
peak daily flows over the rated capacity for the one operational treatment train. The increase in flows
can cause poor treatment and operational challenges.
Section 4: Maintenance
Regular scheduled monthly preventative maintenance is assigned and monitored using a work order
system issued by the County of Elgin. The following is a summary of items that were replaced and were
not part of routine work orders:
-Decant system repairs
-Replaced RAS Pump P-62 along with VFD
-Building maintenance/repairs
-Replaced Raw Pump #1
-Replaced Internal Recirculation pump P-52
-Air Conditioner repairs
-UV Maintenance
-Replaced Mudwell Pumps
-Replaced Actuator or sandfilter #2
-Condition assessment on UV System
-MCC inspection
-Spare VFD purchased
-Spare actuator purchased
Section 5: Effluent Quality Assurance
Effluent quality assurance is evaluated by monitoring processes throughout the plant. The operators
monitor the aeration tank by performing tests on the mixed liquor; these tests include DO, pH,
temperature, settling tests, and Mixed Liquor Suspended Solids (MLSS). As well, monitoring of alum
dosages, wasting volumes, Return Activated Sludge flows and plant instrumentation help ensure the
plant is operated in compliance. This information allows the operator to make the appropriate
Page 12 of 14
adjustments in the treatment process so that corrective actions can be taken before the plant reaches
its effluent limits.
Section 6: Calibration and Maintenance
Flow meters where calibrated on March 19, 2018 by Flowmetrix Technical Service Inc. All other
instrumentation at the facility (pH, DO meters) is calibrated by OCWA operators as per manufacturer’s
instructions.
Section 7: Effluent Objectives
Effluent Objectives
Detailed analytical data is provided in Appendix A. Table 2 summarizes the annual averages and
maximum single sample results.
Table 2. Effluent concentration and loading ranges of individual sample results compared to the effluent
objectives set out in the Environmental Compliance Approval.
Effluent Effluent Effluent
Effluent Loading
Concentration Concentration Loading
Parameter Result Ranges
Objective Result Ranges Objective
(kg/d)
(mg/L) (mg/L) (kg/d)
cBOD55 <2 – 4 0.5 0.06 - 0.12
Suspended Solids5 <2 – 3 0.5 0.06 - 0.14
0.1(a) 0.03 –0.08 0.01 0.001 – 0.003
Total Phosphorus
0.5(b) 0.03 –0.08 0.05 0.001 – 0.003
2.0(a) <0.10 – 1.8 0.2 0.003 – 0.076
Total (Ammonia +
Ammonium) Nitrogen
4.0(b) <0.10 – 7.5 0.4 0.004 – 0.297
E. coli (cfu/100mL)100 0 – 100- -
Dissolved Oxygen5.0 (min)7.38 –9.45--
pH 6.0-8.56.64 –8.61 - -
o
NOTE: (a) limit applies when receiving stream temps are above 5C
o
(b) limit applies when receiving stream temps are below 5C
Discussion on Effluent Objectives
The Elgin Manor WWTP did not meet the following objectives in 2018:
ParameterResult Date Comments/Possible Cause
TAN 7.5 January 18, 2018 RAS pump issues, low return rates
TAN 7.5 March 22, 2018High influent flows received
pH 8.64 July 24, 2018Decanting from sludge holding tank
Page 13 of 14
There were 3 objectives exceeded for 2018 compared to 8 objectives exceeded in 2017. Plant
adjustments are made to ensure that the plant meets the compliance limits that are set in the
Environmental Compliance Approval. Despite exceeding effluent objectives no limit exceedances have
resulted. All actions taken are documented in the facility logbook.
Section 8: Sludge Management
3
The volume of sludge removed from the facility for 2018 was 128m. The material was disposed of by
Sanitary Sewer Cleaning Co. Ltd. A920065 to the Dingman Pumping Station London. It is estimated that
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the sludge removed in 2019 will be similar as 2018 and therefore will be approximately 130m.
Section 9: Community Complaints
There was no community complaints received for the Elgin Manor Wastewater Treatment Plant in 2018.
Section 10: Bypass, Spills, and Abnormal Discharges
There were no bypasses, spills or abnormal discharge events for the Elgin Manor Wastewater Treatment
Plant for the reporting period.
Section 11: Summary
The construction of the senior apartments adjacent to the Elgin Manor Home has been on hold with the
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expected completion date uncertain. It was estimated that there will be 14madded to the existing average
daily flow, which would operate the existing one train operation beyond the rated capacity. There it will
require both trains operating to maximize treatment.
Overall the Elgin Manor Wastewater Treatment Plant provided effective wastewater treatment in 2018
meeting all limits identified in the ECA. There are issues with meeting all objectives as identified in the
ECA. However, the objective exceedances have been reduced in 2018.
Page 14 of 14
APPENDIX A
Detailed Monthly Compliance and Loading Data
Re: Elgin County Services 2019 and Beyond
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