wastewater system effluent regulations

April 4, 2014
Chris Power, P.Eng.
Wastewater is composed of industrial,
commercial, institutional and domestic
wastes including blackwater &
Effluent: wastewater that is deposited
from a wastewater system
Influent: means wastewater entering a
wastewater system
What is WSER?
Wastewater Systems Effluent Regulations
• Established (July 18, 2012) under the (Federal)
Fisheries Act to regulate wastewater outflows
• Sets minimum effluent quality standards achieved
through secondary wastewater treatment
• Defines sampling, monitoring, record keeping &
reporting requirements
• Will help protect rivers, lakes and oceans with a
workable set of rules for Canada's approximately
4000 wastewater treatment systems.
• Applicable to wastewater systems that collect, or
are designed to collect, an average volume of 100
mᶟ/d or more of influent.
• Not Applicable to • Wastewater systems located in the far north
(Nunavut, the Northwest Territories), north of
54th parallel in Newfoundland & Labrador &
• Systems on the site of industrial, commercial or
institutional facilities that are designed to collect
less than 50% of blackwater and greywater
• Mills as defined in the Pulp and Paper Effluent
Geographic exception in NL
Wastewater in NL
• Approx. 739 sewer outfalls in the
province of Newfoundland & Labrador
• WSER applies to the outfall not the
• WSER does not cover very small
• Existing provincial policy of no new
raw water discharges will apply.
100 mᶟ/d of influent equates to
• 100,000 Litres/day
• Approximately 294 people or 147 homes (E.g.
assuming 340 litres/person/day and 2
Determine if the outfall is 100 m3
• Communities should do a desktop assessment
on all individual outfalls to determine eligibility
if the outfall is 100 m3 or not (and keep
documented results!!)
• Communities can use their data on how many
people connected to the system
• If a community’s outfall is clearly over 100 m 3
then Start flow monitoring
Flow Monitoring
• Consider consultant to assist in flow
• Smaller communities in the same
geographical region may work
together and hire a consultant for flow
monitoring. This will be the most
economical approach.
Effluent Quality Standards
• Wastewater discharges must meet
Total residual
oxygen Demand
Chlorine (TRC)
Solids (TSS)
≤ 25 mg/L
≤ 25 mg/L
≤ 0.02 mg/L
˂ 1.25 mg/L
Types of Wastewater Systems
Two types (for the purpose of regulation)
1. Intermittent Wastewater system:
Hydraulic Retention Time (HRT) of at least 90
days, four discharge periods per year
2. Continuous Wastewater System: Any
wastewater system other than an intermittent
wastewater system
Newfoundland & Labrador has continuous systems for
the most part according to Environment Canada
Intermittent System SamplingCBOD, SS and NH3
Duration of
Type of Sample
to be Taken
Minimum Sampling
>30 days
Grab or
Every 2 weeks but
at least 7 days
after any other
≤ 30 days
Grab or
Once per discharge
Continuous Systems SamplingCBOD, SS and NH3
Annual Average Daily
Volume (m3)
Type of Sample
Minimum Sampling
≤ 2500
Grab or composite
Monthly, but at least
10 days after any
other sample
> 2500 and ≤ 17500
Every 2 weeks, but at
least 7 days after any
other sample
> 17500 and ≤ 50000
Weekly, but at least 5
days after any other
> 50000
3 days a week, but at
least 1day after any
other sample
Continuous Systems with HRT ≥ days SamplingCBOD, SS and NH3
Annual Average Daily
Volume (m3)
Type of Sample to be
Minimum Sampling
≤ 2500
Grab or composite
Quarterly, but at least
60 days after any
other sample
> 2500 and ≤ 17500
Grab or composite
Every 2 weeks, but at
least 7 days after any
other sample
> 17500 and ≤ 50000
Grab or composite
Weekly, but at least 5
days after any other
> 50000
Grab or composite
3 days per week, but
at least 10 days after
any other sample
Acute Lethality Testing
Annual Average
Daily Volume
Type of Sample
To be Taken
Reduced Sampling
> 2500 and
≤ 50000
Quarterly, but at
least 60 days
after any other
Annually, but at
least 6 months
after any other
> 50000
Monthly, but but
at least 21 days
after any other
Quarterly but at
least 60 days after
any other sample
• There is currently no lab in the province
accredited to test effluent for CBOD, SS
and NH3. The nearest accredited lab is in
Bedford, NS.
• AGAT Labs -Mt. Pearl (709-896-0888)
(samples collection depot)
Labs previously used by DOEC
a. Maxxam Analytics Inc.
b. Exova Canada Inc.
• Maxxam St. John’s office can coordinate with Bedford
office to send samples for testing. Contact Maxxam at:
(709) 754-0203 or (902) 832-4852
• EC suggests that towns should request that the
following be tested for:
•Carbonaceous BOD (CBOD)
•Total Suspended Solids (TSS)
•Unionized Ammonia @ 15oC (as NH3)
Flow Meters and Monitoring
• Flow monitoring equipment to be installed as soon
as possible by owners and operators of wastewater
systems (if required). Maintenance and calibration
of equipment is required.
• All outfalls (subject to WSER) need be monitored. A
representative sample may be chosen and results
applied to remaining outfalls.
• For information on available flow meters, visit the
following websites:
• http://www.3spgroup.com/3SPG/Applications_homeES.php?locale=en&A
• http://www.wastewatercanada.com/index.htm
• http://www.environmental-expert.com/waterwastewater/sewers/products/keyword-sewer-flow-monitoring14731/location-canada-newfoundland
• http://biomaxx.ca/products.php
Implementation Timelines
• Wastewater systems not meeting the effluent
quality standards would need to upgrade their
systems to meet the standards
• Data collected through the quantity and quality
monitoring program is converted into a score
• Score is then used to determine the level of
environmental risk associated with the outfall and
the timeframe required to meet the new effluent
• 2020 (high risk), 2030 (medium risk) or 2040 (low
risk) timeline
Implementation Timelines
January 1, 2013
• Effluent quality and quantity
monitoring begins.
• Combined sewer overflow (CSO)
recording begins.
• Record keeping and reporting
requirements are in force.
• Records must be kept for 5 years
Implementation Timelines
May 15, 2013
• Deadline to submit identification
report for wastewater systems in
operation on January 1, 2013.
This is a one time requirement
• Deadline to submit first quarterly
monitoring report (If applicable)
Submit ID Reports online
• Access Effluent Regulatory Reporting
Information System (ERRIS) via
Environment Canada’s Single
Window Information Manager (SWIM)
EC is ready to assist municipalities to
navigate SWIM & ERRIS
• Create an account with SWIM
• After log-in, user is linked to SWIM
• Within SWIM, create your user profile
• Then go ERRIS
EC Single Window Information System (SWIM)
SWIM web link
Implementation Timelines
February 14, 2014
• Deadline to submit first annual
monitoring report (If applicable).
February 15, 2014
• Deadline to submit first CSO
Implementation Timelines
June 30, 2014
• Deadline to apply for transitional
authorization (TA).
• TA requires a year’s worth of flow and
quality data.
• WW systems not meeting standards
can apply
• Conditions will be set under which the
facility may continue to operate, as well
as risk based timeline for achieving
final compliance
Implementation Timelines
January 1, 2015
• Effluent quality standards and limits in
TAs are in force.
• Exception: TRC standard for <5000
m3/day wastewater systems – Jan
1, 2021.
• Application for temporary bypass
authorizations may be submitted
• Acute lethality monitoring begins for
wastewater systems that already meet
the effluent quality standards.
Implementation Timelines
June 30, 2017
• Deadline to submit the progress
report for wastewater systems
with a TA expiry date of December
31, 2020.
Timeline Summary
July 2012
became law
Jan 1, 2013
-Effluent flow and quality monitoring
must start
-Record keeping starts (must keep for 5 yrs.)
-Reporting starts
(45 days after end of quarter)
-Applications for Trans. Authorizations
and Temp. Authorizations can be made
(including required plans)
Jan 1, 2015
The following come into effect:
-Authorizations to Deposit
-Trans. Authorizations
-Temp. Authorization (for NH3 - Jan 1, 2014)
-Temp. Bypass Authorization
-Acute toxicity testing starts
-Notification of deposit of a deleterious
Dec 31, 2020
Compliance for High Risk
May 15, 2013
Outfall ID Report due
-Consolidation Plan
-Wastewater System
Modification Plan
-Wastewater System
(Overflow) Modification Plan
-Identification Report (once)
-Monitoring Report (annual-quarterly)
-Overflow Report (annual)
-Progress Report (every 5 yrs.)
June 30, 2014
-Application for Transitional
Authorization due
-Requires a years worth of flow
and quality data
Dec 31, 2030
Compliance for Medium Risk
Progress Reports
-July 1, 2017
-July 1, 2020
-July 1, 2025
-July 1, 2030
-July 1, 2035
Dec 31, 2040
Compliance for Low Risk
• Funding for Flow Meters is eligible under MCW and
MYCW program of MIGA. However this year’s
applications are now closed. Gas Tax may be used
with approval of GT Secretariat.
• Monitoring Costs are not eligible.
• Wastewater treatment infrastructure is an eligible
category under the Provincial-Territorial Base
Fund, the Green Infrastructure Fund and Gas Tax
Fund. The Federal budget made a commitment to
the renewal of a 10-year Building Canada
Infrastructure Program which the province
anticipates will cover WWT.
Flow Meters
Following are a few examples of Flow meters suppliers
It is important to ensure and check purchases against
obligations of the Public Tender Act.
1. Avensystems Solutions
Dartmouth, NS B2X 1S1
Tel: 902-469-4400
2. Can-Am Instruments Ltd.
Tel: 1-800-215-4469
3. BioMaxx
Tel: 1-855-940-5556
Contact Information
• Environment Canada is the primary interface for
administration of regulations in the province.
• General wastewater contact:
• email [email protected] or
• EC Wastewater toll free line 1-800-668-6767
• DOEC (NL) are not administering the regulations
• Community reports from their outfall database can be provided
by contacting DOEC.
• WSER is available online at:
• http://laws-lois.justice.gc.ca/PDF/SOR-2012-139.pdf
• For more information and online reporting system, visit:
• www.ec.gc.ca/eu-ww
Thank you
Any Questions?
[email protected]

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