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ZDHC
Wastewater Laboratory Sampling
and Analysis Plan (SAP)
&Data Quality Continuous
Improvement
20-21 June 2019
Presenters and Agenda
page02© Stichting ZDHC Foundation. 2019. All rights reserved.
Nany KusumaProgramme Senior Manager
Phil Chung Programme Project Manager
Tim MaloneyTechnical Lead
ZDHC Laboratory Acceptance
Programme
Brief introduction to the
ZDHC Roadmap to
Zero Programme.
ZDHC Wastewater
Laboratory Sampling and
Analysis Plan (SAP)
---
What it is, how it works and
ZDHC’s expectations on its
practical implementation.
Data Quality
from ZDHC Gateway
Perspective
---
ZDHC’s Expectations and
Continuous Improvement
Programme.
page03
© Stichting ZDHC Foundation. 2019. All rights reserved.
The ZDHC Foundation
Programme, Academy, and Implementation HUB
page04
The ZDHC Implementation HUB
The Roadmap to Zero Programme
Tools & Guidelines Development
Capacity Building Scaling up innovation & adoption
© Stichting ZDHC Foundation. 2019. All rights reserved.
A holistic systems approach
to Sustainable Chemical Management
INPUT PROCESS OUTPUT
page05
© Stichting ZDHC Foundation. 2019. All rights reserved.
ZDHC MRSL Version 1.1
page06
A holistic approach
INPUT management
ZDHC MRSL Conformance
Guidance
ZDHC Gateway -Chemical Module
© Stichting ZDHC Foundation. 2019. All rights reserved.
ZDHC MRSL Update Principles
& Procedures
page07
A holistic approach
PROCESS management
”How to ZDHC”Chemical Management
System (CMS) Guidance
Harmonisation with relevant parts of assessment /
audit schemes
Leather WorkingGroup
The ZDHC Leader Programme
© Stichting ZDHC Foundation. 2019. All rights reserved.
page08
A holistic approach
OUTPUT management
ZDHC Wastewater Standards
Literature Review
ZDHC Wastewater Guidelines
ZDHC Gateway –Wastewater Module
© Stichting ZDHC Foundation. 2019. All rights reserved.
ZDHC Laboratory Sampling &
Analysis Plan (SAP) for
Wastewater
The focus of our call today
ZDHC Accepted Laboratories
Continuous Improvement Programme
page010
© Stichting ZDHC Foundation. 2019. All rights reserved.
The How
ZDHC Wastewater Guidelines (WWG)
1. Scope
2. Minimum requirements
3. Parameters (Conventional & MRSL), limit values and test methods
4. Type of samples and sampling points/locations
5. Testing requirements for Direct, Indirect & ZLD facilities
6. Measuring conformance to WWG for Direct, Indirect & ZLD facilities
7. Minimum reporting frequency
8. Etc.
The What
Main target audience • Brands
• Suppliers
• Testing labs
• Various stakeholders
e.g. NGOs, Gov.
organisations,
Academia, etc.
Laboratory Acceptance
Programme
• Min. requirements
• Review process
• Corrective actions
• Proficiency test
• Quality Assurance &
Quality Control
• Etc.
Main target audience : Testing labs
Laboratory Sampling and Analysis Plan (SAP)
1. Sampling procedures → incl. sample containers and preservatives,
sample custody, sample shipments, etc.
2. Analysis/testing procedures → incl. sample receipt, handling and
custody, holding time, quality system, etc.
3. Data validation → incl. electronic data reporting requirements.
Wastewater Sludge
Implementation Mechanism
ZDHC Wastewater Programme
ZDHC Laboratory Acceptance Programme
page011
© Stichting ZDHC Foundation. 2019. All rights reserved.
• ZDHC acceptance means that the laboratory has the personnel, equipment and processes in
place to analyse wastewater and sludge samples.
• Main lab is responsible for performance of sub-contracted labs.
Lab application formv Lab and Subcontract Lab
Information
v ISO certifications
v Lab DL and RL
Minimum criteria for acceptance• 50% of conventional parameters have ISO certification
• 100% of MRSL parameters have ISO certification
• Analyze for all parameters
• Meet or exceed required RL’s
• Complete requested Corrective Action Reports
83 ZDHC Provisionally Accepted Laboratories* in 24 locations – as per May 2019
page012© Stichting ZDHC Foundation. 2019. All rights reserved.
*Latest list on ZDHC website
page013
© Stichting ZDHC Foundation. 2019. All rights reserved.
ZDHC Wastewater Laboratory Sampling and Analysis Plan (SAP) Version 1.0
● Published on ZDHC public website in June 2019.
● Communicated to All ZDHC Accepted Labs.
● Special thanks to the Laboratory Advisory Group!
● SAP for Sludge is in development. Release plan - this year.
Laboratory Sampling and Analysis Plan (SAP)
Wastewater Sludge
page014© Stichting ZDHC Foundation. 2019. All rights reserved.
• Guidance on sampling and analysis, specific for testing laboratories, presented in
one document.
• Contains:
ü Information previously presented in ZDHC Wastewater Guidelines with some
necessary improvements.
ü New information regarding ZDHC specific DQI’s, DQO’s and reporting.
• The SAP is to be used in combination with ZDHC Wastewater Guidelines (WWG).
o WWG – target audience: brands, suppliers, testing laboratories, various
stakeholders e.g. NGOs, governmental organisations, academia, etc.
o SAP – specific to testing laboratories.
*Refers as much as possible to ZDHC Wastewater Guidelines to avoid duplications.
ZDHC Wastewater Laboratory Sampling and Analysis Plan (SAP)*
page015© Stichting ZDHC Foundation. 2019. All rights reserved.
• Composite Sample
• Containers and preservatives
• Handling/Custody
• Shipping
Sampling
• Sampling Locations
• Types of samples
ZDHC Wastewater Guidelines
ZDHC Laboratory Sampling & Analysis Plan (SAP) for Wastewater
The SAP refers as much as possible to ZDHC Wastewater Guidelines to avoid duplications.
page016© Stichting ZDHC Foundation. 2019. All rights reserved.
The SAP refers as much as possible to ZDHC Wastewater Guidelines to avoid duplications.
Analysis
ZDHC Wastewater Guidelines
ZDHC Laboratory Sampling & Analysis Plan (SAP) for Wastewater
• Holding Times
• ZDHC specific DQI’s
• ZDHC specific DQO’s
• Approved Methods
• Parameters
• Required Reporting
Limits
ZDHC Laboratory Sampling and Analysis Plan for Sludge
page017© Stichting ZDHC Foundation. 2019. All rights reserved.
To be published later this year. Content includes among others:
• Types of samples and sampling locations
• Containers and preservation• Approved sample extraction/digestion methods
• Test methods mostly the same as WW
• Holding times• ZDHC specific DQI/DQO
page018
© Stichting ZDHC Foundation. 2019. All rights reserved.
ZDHC Laboratory Programme Continuous Improvement
• Implement ZDHC Wastewater SAP, Sludge SAP and Electronic Data
Reporting.
• Support and respect data integrity in ZDHC Gateway – Wastewater Module
○ Provide reporting limit with ND
○ Provide calculated reporting limits (not ZDHC discharge limit)
• Implement ZDHC specific DQI’s/DQO’s.
• Due Diligence - including random data audits.
Data Quality
Continuous Improvement Programme
Why is Data Quality Important?
© Stichting ZDHC Foundation. 2019. All rights reserved.
2020 is around the corner.
Report on: 1. Progress
2. Impact
Which supports us in updating ZDHC Tools.
Why Data Quality?
Why Now?
page021© Stichting ZDHC Foundation. 2019. All rights reserved.
● There are 3,200+ wastewater test reports on
ZDHC Gateway Wastewater Module
● Programme & Task Team have:
○ Review & analyse test data in different
aspects and in different angles
○ Found it difficult to analyse & draw
conclusion from results
● Therefore, data quality is the key moving
forward.
● Test Reports submitted in the Gateway between Nov 2017 – April 2019
● Analysed for different purposes such as Impact Reporting, Task Team Work, etc
WHAT HAVE WE ANALYSED?
page022
Gateway Data Quality ReviewContext Setting
Gateway Data Quality
What Have We Found So Far?
page023
RAW WASTEWATER
RAW WASTEWATER
UNIT11.0 mg/l11 Unit11 µg/l11 Unit11 mg/l
11.0 mg/l11 µg/l11 µg/l11 Unit11 µg/l11 µg/l11 mg/l
11.00 µg/l11 µg/l
o.192 mg/l.32 mg/l
Examples: (Data Period: Nov 2018 - Jan 2019 - Snapshot Only)• Overall Inconsistency
• Data Errors (Example: “No Unit”, “o” instead of “0” etc.)
• Blank Information (no idea if not tested or not filled in)
• Unsure where results come from (Example: Result listed as “0”)
• Leaving incoming water out, even when there are failures in
discharge wastewater.
• Not testing all parameters:
• Sample missing or not requested
• Not enough sample, not requested etc.
• No information why not tested (requested by customer or sample issues)
© Stichting ZDHC Foundation. 2019. All rights reserved.
To be able to measure progress or to compare we need ‘standardised’ data. Standardised Data would mean all parameters to be tested / no omissions / no personalisation.
page024
Gateway WW Module: Preliminary Analysis
OVERVIEW
1. 200 WW Test Results
(Random Sample)
2. Oct 2017– Feb 2019
3. 19 Laboratories
Note: greyed out due to confidential information.
© Stichting ZDHC Foundation. 2019. All rights reserved.
page025
We have found 74% Reports audited with following issues
1. Analyte: Persistent Foam – Visible or Not-
Visible is a drop down option in Gateway.
Analyte is usually left blank instead of choosing
the correct drop-down item in Gateway.
2. Standard Test Method – usually tagged as “-”
or “Standard Test Method” in Gateway
Example:
Missing Fields
BLANK FIELDS● A persistent & critical issue observed in the
Gateway.
● Affects the clarity of the ClearStream report as
readers would not know
○ If there was no detection on that specific
analytes, or
○ If testing was not done or
○ If it was unintentionally leftout
● This hinders credible data analysis
TYPICAL EXAMPLES
© Stichting ZDHC Foundation. 2019. All rights reserved.
page026
As seen on ClearStream Report
Information as entered in Gateway by labs
Example:
Missing Fields
Persistent Foam
No data was entered
No test method filled in
© Stichting ZDHC Foundation. 2019. All rights reserved.
page027
Original Report As entered in Gateway
Example:
Incorrect Facility Names
Baotou ***** Cashmere Product Co., Ltd
Inner Mongolia **** Textile
Technology Co., Ltd
© Stichting ZDHC Foundation. 2019. All rights reserved.
page028
Original Report As Entered in Gateway
Example:
Incorrect Dates
26-Sep-2017
27-Sep-2017
© Stichting ZDHC Foundation. 2019. All rights reserved.
page029
Original Report As entered in Gateway
Example:
Incorrect Report ID
Report Ref:A174YW71
Report Ref:(9618)187-0313
© Stichting ZDHC Foundation. 2019. All rights reserved.
Example:
Duplicate Accounts
o Sample Organization: ***** (Shanghai)
Textile Chemicals Co., Ltd
o Current status: Have approved A95***89
in Gateway but there are 8 open invitations
available in Gateway for the same
Organization.
o Approved Organization was confirmed to
be a Formulator but there are invitations
sent out to the company for Supplieraccounts.
page030
© Stichting ZDHC Foundation. 2019. All rights reserved.
page031
Continuous Programme for Data Improvement in ZDHC Gateway
© Stichting ZDHC Foundation. 2019. All rights reserved.
Improving Quality of Test Data in
the ZDHC Gateway – Wastewater Module
page032© Stichting ZDHC Foundation. 2019. All rights reserved.
Going Forward Historic Data
From the launch of ZDHC Gateway - Wastewater Module
in mid 2017 – until now (exact date TBD).
Data Cleansing
Data Audits Electronic Data Reporting (for Wastewater)
Data Audit & Cleansing
Aim & Objectives
page033© Stichting ZDHC Foundation. 2019. All rights reserved.
AIM & OBJECTIVES:• Identify the scale of the data gaps and areas where data are prone to errors
• Put forward this errors to the accepted laboratories can responsible to amending data issues
• Clean-up existing data so they can be usable for future data analysis
• Draw future improvement plans
Historical Data
Data Audit and Cleansing
Approach and Timelines
page034© Stichting ZDHC Foundation. 2019. All rights reserved.
EndAugust 2019June 2019 July 2019 July /
August 2019
• Select & commission a third party data specialist.
• Specify project & data scope
Third party data specialist to:
• Identify and categoriseerrors,
• Conduct initial cleansing on obvious mistakes such as:
• Obvious typos, • Double spacing,
• Commas instead of dots for decimal places
ZDHC will reach out to ZDHC Accepted Labs to correct identified errors that the third party data specialist cannot correct. For example:
• Gaps in facility names
• Missing data points
• Other significant errors…
Completion of data cleansing
Historical Data
What is Electronic Data Reporting
(EDR)?
page035
● Background○ Currently, labs have to enter test results
manually onto ZDHC Gateway Wastewater
Module
○ A time consuming exercise and prone to
manual entry error
● What is Electronic Data Reporting?○ A system where data are transferred
(almost) automatically from Laboratory
Information Management System (LIMS) to
Gateway
○ To increase data accuracy and reliability
○ Improve productivity of ZDHC, Task Teams
& Accepted Labs
Screenshot of manual data entry interface on ZDHC Gateway Wastewater Module
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
Electronic Data Reporting
Our Approach
page036
Engagement with Stakeholder to Ensure Success on Technical Development
In discussion with LAG &
ADEC to ensure technical
feasibility & creditability
Consulting contributors for
comments and feedback
Engage all accepted labs in
this subjects matter via
webinars
Share finalised EDR template
to all accepted lab on the
earliest possible opportunity
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
Electronic Data Reporting
Strategy & Timelines
page037
MAY 2019
JUNE 2019
AUGUST / SEPTEMBER 2019
1 MAY 2020
§ Consulting LAG & Contributors
§ Finalise Electronic Data Reporting Template & Send to ADEC for
technical development
§ Engage all ZDHC accepted laboratories on this subject matter
§ Complete Development and Roll Out As Sandbox access to labs
§ Engage all accepted labs and educate how the system works
§ Fine-tune system where needed
§ Roll out onto live system. Manual entry system switch off (TBD)
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
Future-proofing Data Quality in ZDHC Gateway
Strategy & Timelines
page038
In Conjunction With Other Supporting Gateway Functionalities
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
Important note: release
plan of the ZDHC WWG
V2.0 itself is TBD.
Electronic Data Reporting:
Suggested System Set Up
page039
LabLIMS#
Submission Pending:Subject to
Amendment
LIMS system
automatically
populates the
data file template
Lab admin drag & drop
multiple data file on the
Gateway Web Interface
(can be for different
supplier at the same
time
System auto-check if
files contains any
bugs (e.g.
discrepancies in
facility name &
unique ID code)
System flags up file(s) with issues
System requests lab
to address issues
Facility accepts or rejects report
Factory Upload
Corrective Action
Plan if applicable
CAP
Request data for
facilities’
acceptance
Start of Process
End of Process
Facility questions lab test results / request
corrective actions from the lab
*This assumes the labs have already paid the annual reporting fee# LIMS stands for Laboratory Information Management System
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
Electronic Data Reporting:
ZDHC Electronic Data Reporting Guidelines
page040
Full information will be available in the ZDHC Electronic Data Reporting Template & ZDHC Electronic Data Reporting Guidelines
A living document that provide details on:• Background of Electronic Data Reporting
• Technical specification of data upload
• Specific data entry rules for each data field
• Initially this document maybe updated reasonably frequently to reflect the
latest update of Gateway Software design
• To be provided to all ZDHC Accepted Laboratories
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
Electronic Data Reporting:
Data Template Features
page041
Universal Applicability for future-
proofing ZDHC Gateway and Labs’
LIMS System in case data collection
scope is expanded
Explanatory notes & standardised
data rules are provided in the header
of data column
Some data examples to support
accepted labs to understand &
interpret what these data rules mean.
Going Forward
Full information will be available in the ZDHC Electronic Data Reporting Template & ZDHC Electronic Data Reporting Guidelines
© Stichting ZDHC Foundation. 2019. All rights reserved.
Electronic Data Reporting:
Data Upload Specification
page042
File Format: .xlm
Data Upload System: Drag & Drop Via ZDHC Gateway
(Looking into the possibility of Secured File Transfer Protocol – SFTP)
Maximum file size: 10 MB
(ADEC will need to run tests on the system to ensure speed for data
transfer and validation speed can be ran at an optimal level)
Others: Possibility to upload multiple test reports within
one data template at the convenience of the lab
!
Note:The entire dataset will be rejected in
case of an single data error. In this
case, labs may consider upload test
report one at a time before they are
confident that the data are always 100%
correct
Going Forward
Full information will be available in the ZDHC Electronic Data Reporting Template & ZDHC Electronic Data Reporting Guidelines
© Stichting ZDHC Foundation. 2019. All rights reserved.
What does Data Validation In The
Wastewater Module Involve?
page043
AUTOMATIC CHECK OF DATA CONSISTENCY BEFORE ACCEPTING THE DATA ONTO THE SYSTEM
HAS DATA BEEN ENTERED ACCORDING TO THE STANDARDISED DATA RULE?• Correct and complete entry of ALL analytes
• In case certain analytes are not analysed, need to provide reasons for not testing
• Correct use of decimal points
• Correct number significant figures in test results and reporting limits (maximum 3 s.f.)
• Correct entry of units
MULTIPLE TESTING LESS THAN A 3 MONTH GAP?• System will flag up that this is the case
• Actively ask the lab/suppliers if they want to upload this round of test data (but not
blocking the upload)
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
What does Data Validation In The
Wastewater Module Involve?
page044
AUTOMATIC CHECK OF DATA CONSISTENCY BEFORE ACCEPTING THE DATA ONTO THE SYSTEM
INCORRECTIVE INFORMATION BEEN ADDED OR CONFLICT OF INFORMATION?• The system will flag up the issues and block the upload until they are rectified or resolved
directly on the system (either by labs or suppliers)
WHAT ELSE DOES DATA VALIDATION DO?• Applying testing & sampling rule according to WWG & based on the facility’s discharge type
and/or material type
• Conclude the outcome (i.e. foundational, progressive & aspirational) based on the limits of
latest WWG & specific industry requirements (e.g. MMCF, Leather, PU Coated Fabric, Textile
etc.)
Going Forward
© Stichting ZDHC Foundation. 2019. All rights reserved.
How will the Accepted Labs be
Supported In This Process?
page045
ZDHC Electronic Data Reporting Template
ZDHC Electronic Data Reporting Guidelines
Sandbox Access to ZDHC Gateway Demo
Demo Videos of Data Upload
Going Forward
Coming in July 2019 Coming in Q3/Q4 2019
© Stichting ZDHC Foundation. 2019. All rights reserved.
Next Steps For ZDHC Accepted Laboratories
Data Quality Continuous Improvement Programme
page046
DATA CLEANSING• Accepted Labs will be contacted to amend
questionable data.
• Specific deadlines will be communicated to each
accepted lab
ELECTRONIC DATA REPORTING• ZDHC will send the Accepted Labs the following documents:
• This webinar material (after this call)
• Electronic Reporting Template (in July)
• ZDHC Wastewater & Sludge Electronic Data Reporting
Guidelines (in July)
• Labs will need to work with their internal IT team to configure their LIMS system to enable data transfer to the ZDHC Electronic Data Reporting Template.
Going Forward Historic Data
From the launch of ZDHC Gateway - Wastewater Module
in mid 2017 – until now (exact date TBD).
© Stichting ZDHC Foundation. 2019. All rights reserved.
page047
Thank you everyone!
© Stichting ZDHC Foundation. 2019. All rights reserved.