README FILE
Dataset Title: GLA_ICW_EffluentMonitoring_2015-2025_v01

GENERAL INFORMATION

Title of Dataset
Glaslough Integrated Constructed Wetland (ICW) Historical Effluent Monitoring Dataset (2015–2025)

Date of Data Collection
2015-01-07 to 2025-12-31

Location of Data Collection
Glaslough Integrated Constructed Wetland (ICW), County Monaghan, Ireland

Keywords
Integrated Constructed Wetlands (ICWs), wastewater treatment, effluent quality, long-term monitoring, phosphorus removal, ammonium removal, nutrient dynamics, surface flow wetlands, ecological engineering, nature-based solutions

Original Data Provider
Uisce Éireann (formerly Irish Water)

Data Compilation, Processing and Analysis
Ayisha Affo Souleymane
PhD Researcher
School of Water, Energy and Environment
Cranfield University

Supervisory Institution
Cranfield University

Funding Source
This dataset was compiled and analysed as part of a PhD research project investigating long-term wastewater treatment wetland performance, nutrient removal dynamics, and compliance reliability in integrated constructed wetlands.

METHODOLOGICAL INFORMATION

Description of Dataset
This dataset contains historical treated effluent water quality monitoring data from the Glaslough Integrated Constructed Wetland (ICW) between 2015 and 2025. The data formed part of routine wastewater treatment operational and compliance monitoring undertaken by Uisce Éireann.

The dataset was subsequently compiled, cleaned, and analysed for academic research purposes at Cranfield University.

The data represent long-term treated effluent quality and associated nutrient concentrations under operational full-scale wetland treatment conditions.

Description of Data Collection
Samples were collected from treated effluent monitoring locations associated with the integrated constructed wetland system using routine operational wastewater monitoring procedures.

The dataset includes measurements related to:

* Organic matter concentrations
* Suspended solids
* Nitrogen species
* Phosphorus concentrations
* pH

Analytical Methods
Water quality analyses were undertaken using standard wastewater analytical procedures and accredited laboratory methods where applicable.

Parameters measured include:

* Biochemical Oxygen Demand (BOD)
* Total Phosphorus (TP)
* Chemical Oxygen Demand (COD)
* Nitrate Nitrogen (NO3-N)
* Orthophosphate Phosphorus (Ortho-P)
* pH
* Total Suspended Solids (TSS)
* Total Nitrogen (TN)
* Ammonium Nitrogen (NH4-N)

Experimental Conditions
The dataset represents real-world operational monitoring data collected under varying seasonal, hydraulic, and treatment conditions within a municipal integrated constructed wetland system.

Quality Assurance / Quality Control (QA/QC)

* Sampling and laboratory analyses were undertaken as part of routine wastewater treatment monitoring procedures.
* Analytical QA/QC procedures associated with the original monitoring programme were undertaken by Uisce Éireann and associated laboratories.
* Data cleaning and formatting were undertaken prior to academic analysis.
* Missing or unavailable measurements were retained as blank cells where applicable.

SHARING AND ACCESS INFORMATION

License and Restrictions
The original monitoring data were provided by Uisce Éireann for academic research purposes. Users should acknowledge both Uisce Éireann and Cranfield University where appropriate.

Some data may remain subject to third-party ownership or institutional sharing restrictions.

Associated Publications
This dataset contributes to ongoing PhD research examining long-term compliance behaviour, nutrient dynamics, and reliability of integrated constructed wetlands for municipal wastewater treatment.

Recommended Citation
Souleymane, A. A. (2026). Glaslough Integrated Constructed Wetland Effluent Monitoring Dataset (2015–2025). Cranfield University.

FILE NAME STRUCTURE AND FORMAT

File Name
GLA_ICW_EffluentMonitoring_2015-2025_v01.csv

File Structure
Single comma-separated values (CSV) file containing historical treated effluent monitoring data.

File Format
CSV (Comma-Separated Values)

Date Format
DD/MM/YYYY

DATA-SPECIFIC INFORMATION

Dataset Description
The dataset contains historical treated effluent monitoring records and associated water quality measurements collected between 2015 and 2025.

Variable Definitions

1. Date
   Sampling date recorded in DD/MM/YYYY format.

2. BOD (mg/L)
   Biochemical Oxygen Demand concentration expressed in milligrams per litre.

3. Avg TP (mg/L)
   Average Total Phosphorus concentration expressed in milligrams per litre.

4. Avg COD (mg/L)
   Average Chemical Oxygen Demand concentration expressed in milligrams per litre.

5. Avg NO3-N (mg/L)
   Average Nitrate Nitrogen concentration expressed in milligrams per litre.

6. Avg Ortho-p (mg/L)
   Average Orthophosphate Phosphorus concentration expressed in milligrams per litre.

7. pH
   Dimensionless measure of acidity or alkalinity.

8. Avg TSS (mg/L)
   Average Total Suspended Solids concentration expressed in milligrams per litre.

9. Avg TN (mg/L)
   Average Total Nitrogen concentration expressed in milligrams per litre.

10. Avg NH4-N (mg/L)
    Average Ammonium Nitrogen concentration expressed in milligrams per litre.

Units of Measurement
All concentration data are reported in milligrams per litre (mg/L), except pH which is unitless.

Missing Data Codes
Blank cells indicate unavailable or missing measurements.

Abbreviations

* ICW = Integrated Constructed Wetland
* BOD = Biochemical Oxygen Demand
* TP = Total Phosphorus
* COD = Chemical Oxygen Demand
* NO3-N = Nitrate Nitrogen
* Ortho-P = Orthophosphate Phosphorus
* TSS = Total Suspended Solids
* TN = Total Nitrogen
* NH4-N = Ammonium Nitrogen

VERSIONING

Version
Version 1.0

Last Updated
2026-05-29

Change Log
Version 1.0 – Initial compilation and documentation of Glaslough ICW historical effluent monitoring dataset.
