Glencorse C: your water explained
Published results for this named supply area. Your address may be served by a different area.
Confirm your address · Check a postcode
Check your full postcode before assuming this area report describes the water serving your address.
Your water at a glance
Soft water. Know your mineral level.
This figure helps you choose appliance settings. Hardness describes dissolved minerals and does not establish whether every water-quality requirement was met.
30.60 mg/l as CaCO₃
Soft ≤100 · Slightly hard ≤150 · Moderately hard ≤200 · Hard ≤300 · Very hard >300 mg/l. DWI hardness bands; not safety grades.
Published quality checks
2 parameters need a closer look
These labels describe 2025. 7 other parameters have no complete compliance judgement here. They are not a guarantee about an individual tap today.
Iron · Coliform bacteria
Understand the reported results ↓Read the supplier’s original report and notes ↗Make this useful for your home
Hardness reporting period: 2024 · Quality reporting period: 2025
Hardness comes from a separate retained supplier source. Its period must not be assumed to match the quality report.
Appliance settings · Convert hardness units
0.31 mmol/l
A conversion of the published hardness, not another test. Follow your appliance’s model-specific instructions.
The automated collector cannot currently retrieve this source. This is the retained approved report; check the supplier for newer information. Original supplier report ↗
Drinking-water results
What do the important results mean?
Read the status, sample range and source requirement together. A low average can hide an individual exceedance. Green labels mean the supplier reported no exceedances for that parameter and period; amber calls for source context.
Iron
! Exceedance reported in this period
Published mean
21.71 μgFe/l
Source reference: 200 μgFe/l
Can affect water colour, staining and taste. A historical result does not diagnose a change in your tap water today.
49 samples · Range: < 6 to 300 μgFe/l
The supplier reports 2.04% of results failing its requirement. This is a percentage, not a failure count. Read the investigation notes.
Coliform bacteria
! Exceedance reported in this period
Published mean
0.01 CFU/100ml
Source reference: 0 CFU/100ml
Used to monitor water-system hygiene. Interpret detections with the supplier’s sampling location and investigation notes.
191 samples · Range: 0 to 1 CFU/100ml
The supplier reports 0.52% of results failing its requirement. This is a percentage, not a failure count. Read the investigation notes.
E. coli
✓ No exceedances reported
Published mean
0 CFU/100ml
Source reference: 0 CFU/100ml
A microbiological indicator. The reported sample results and any failures matter more than an average bacterial count.
191 samples · Range: 0 to 0 CFU/100ml
The source reports 0% failing its requirement across 191 samples. This describes the published period.
Lead
✓ No exceedances reported
Published mean
0.76 μgPb/l
Source reference: 10 μgPb/l
Plumbing can affect lead at an individual tap. An area average cannot rule out a problem with pipes at your property.
50 samples · Range: < 0.30 to 7.70 μgPb/l
The source reports 0% failing its requirement across 50 samples. This describes the published period.
For your household
What should you do next?
Check appliance settings
Match the hardness unit to your dishwasher manual. Settings depend on the model.
Dishwasher guideUnderstand treatment options
A filter and a softener do different jobs. Start with the household problem you want to solve.
Filters and limescaleA new change at your tap?
For a new taste, smell, colour or supply problem, check current supplier advice. Annual data is not a live incident feed.
Official supplier help ↗Taste, appearance and mineral content
Chlorine, pH and minerals answer different questions. Calcium and magnesium help describe hardness; chloride is different from treatment chlorine. None is a stand-alone water-quality score.
Free chlorine residual
Disinfectant remaining after treatment. It can influence taste and smell; a lower concentration is not automatically better.
See the measurement and context ↓Total chlorine residual
Disinfectant remaining after treatment. It can influence taste and smell; a lower concentration is not automatically better.
See the measurement and context ↓pH
Describes acidity and alkalinity on a scale, rather than an amount of a substance. Where the source gives a range, both its lower and upper bounds matter.
See the measurement and context ↓Has the hardness changed?
History for this reported source area. Only comparable annual statistics appear in the chart; rolling summaries are kept separate. These are not daily tests at your address.
2016
28.23 mg/l as CaCO₃
2024
30.60 mg/l as CaCO₃
Change between these editions
+2.37 mg/l as CaCO₃
Scroll the chart sideways on smaller screens, or read the values below. Vertical axis: hardness in mg/l as CaCO₃. Bars show annual means.
| Period | Mean | Sample range | Samples |
|---|---|---|---|
| 2016 | 28.23 | —–— | Not published |
| 2017 | 30.26 | —–— | Not published |
| 2018 | 32.57 | —–— | Not published |
| 2019 | 33.83 | —–— | Not published |
| 2020 | 34.47 | —–— | Not published |
| 2021 | 30.38 | —–— | Not published |
| 2022 | 30.15 | —–— | Not published |
| 2023 | 30.48 | —–— | Not published |
| 2024 | 30.60 | —–— | Not published |
Historical figures come from retained source copies. Supplier links may now open a newer edition. Ranges describe the samples reported, not confidence intervals. A short annual series supports a comparison; it does not establish a sustained trend or a change at your tap.
Explore all measurements · 52 parameters · 2025
Every result retains its original units, range, sample count and source notes. Comparisons use the reference printed in this report; qualitative references and missing limits are not converted into invented pass/fail judgements. Unlisted substances are not necessarily absent from the water.
Parameters without their own explanation: A substance monitored in this supplier report. The source reference, units, sample range and any reported failures provide its context; the number alone is not a water-quality rating.
Source note on 41 of these parameters: “Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.”
Source note on 7 of these parameters: “No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.”
Hardness and minerals 4 parameters
Chloride
✓ No exceedances reported
Published mean
6.53 mgCl/l
Source reference: 250 mgCl/l
A dissolved salt component that can influence taste at higher concentrations. It is different from chlorine used in treatment.
49 samples · Range: 5 to 8 mgCl/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 250 mgCl/l. Source parameter: Chloride. Original mean: 6.53 mgCl/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Sulphate
✓ No exceedances reported
Published mean
10.65 mgSO4/l
Source reference: 250 mgSO4/l
A dissolved mineral component monitored in water-quality reports. Read its concentration alongside the source reference.
4 samples · Range: 10 to 11.70 mgSO4/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 250 mgSO4/l. Source parameter: Sulphate. Original mean: 10.65 mgSO4/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Sodium
✓ No exceedances reported
Published mean
4.78 mgNa/l
Source reference: 200 mgNa/l
A dissolved salt component. Compare the water measurement with its source reference; it is not a measure of your total dietary salt intake.
4 samples · Range: 4.70 to 4.90 mgNa/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 200 mgNa/l. Source parameter: Sodium. Original mean: 4.78 mgNa/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Fluoride
✓ No exceedances reported
Published mean
<0.12 mgF/l
Source reference: 1.5 mgF/l
Can occur naturally or be added through a fluoridation scheme. The concentration alone does not tell you whether it was added; a lower number is not automatically better.
4 samples · Range: < 0.12 to < 0.12 mgF/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 1.5 mgF/l. Source parameter: Fluoride. Original mean: < 0.12 mgF/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Taste, appearance and treatment 9 parameters
Colour
✓ No exceedances reported
Published mean
2 mg/l Pt/Co
Source reference: 20 mg/l Pt/Co
A measure of water colour under test conditions. A new change at your tap should be checked with your supplier.
49 samples · Range: < 2 to 2 mg/l Pt/Co
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 20 mg/l Pt/Co. Source parameter: Colour. Original mean: 2 mg/l Pt/Co.
Source note: printed once above this list (the same note appears on 41 parameters).
Turbidity
✓ No exceedances reported
Published mean
0.30 NTU
Source reference: 4 NTU
Measures cloudiness caused by suspended particles. It cannot identify their cause on its own.
49 samples · Range: < 0.30 to 0.30 NTU
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 4 NTU. Source parameter: Turbidity. Original mean: 0.30 NTU.
Source note: printed once above this list (the same note appears on 41 parameters).
Odour
✓ No exceedances reported
Published mean
0 Dilution number
Source reference: 0 Dilution number
A sensory assessment of smell in the sampled water. It cannot identify the cause of a current change at your tap.
49 samples · Range: 0 to 0 Dilution number
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0 Dilution number. Source parameter: Odour. Original mean: 0 Dilution number.
Source note: printed once above this list (the same note appears on 41 parameters).
Taste
✓ No exceedances reported
Published mean
0 Dilution number
Source reference: 0 Dilution number
A sensory assessment of the sampled water. It cannot explain a new taste at your home today.
49 samples · Range: 0 to 0 Dilution number
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0 Dilution number. Source parameter: Taste. Original mean: 0 Dilution number.
Source note: printed once above this list (the same note appears on 41 parameters).
pH
✓ No exceedances reported
Published mean
8.05 pH units
Source reference: 9.5 pH units
Describes acidity and alkalinity on a scale, rather than an amount of a substance. Where the source gives a range, both its lower and upper bounds matter.
49 samples · Range: 7.70 to 8.50 pH units
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 9.5 pH units. Source parameter: Hydrogen ion (pH). Original mean: 8.05 pH units.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice. The source prints 9.5 in its PCV column; no lower pH limit is inferred.
Free chlorine residual
No numerical limit supplied
Published mean
0.08 mg/l
Source reference: Not supplied
Disinfectant remaining after treatment. It can influence taste and smell; a lower concentration is not automatically better.
192 samples · Range: 0.04 to 0.29 mg/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Residual Disinfectant - Free. Original mean: 0.08 mg/l.
Source note: printed once above this list (the same note appears on 7 parameters).
Total chlorine residual
No numerical limit supplied
Published mean
1.05 mg/l
Source reference: Not supplied
Disinfectant remaining after treatment. It can influence taste and smell; a lower concentration is not automatically better.
192 samples · Range: 0.69 to 1.28 mg/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Residual Disinfectant - Total. Original mean: 1.05 mg/l.
Source note: printed once above this list (the same note appears on 7 parameters).
Conductivity
✓ No exceedances reported
Published mean
84.53 μS/cm
Source reference: 2500 μS/cm
Indicates how readily water conducts electricity, influenced by dissolved ions. It is not a direct measurement of hardness or safety.
49 samples · Range: 80 to 93 μS/cm
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 2500 μS/cm. Source parameter: Conductivity. Original mean: 84.53 μS/cm.
Source note: printed once above this list (the same note appears on 41 parameters).
Total organic carbon
No numerical limit supplied
Published mean
1.05 mgC/l
Source reference: Not supplied
A broad measure of organic carbon used to understand water and treatment. It does not identify an individual contaminant.
4 samples · Range: 0.90 to 1.30 mgC/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Total organic carbon. Original mean: 1.05 mgC/l.
Source note: printed once above this list (the same note appears on 7 parameters).
Metals 13 parameters
Aluminium
✓ No exceedances reported
Published mean
20.71 μgAl/l
Source reference: 200 μgAl/l
Monitored as part of water-quality testing and treatment control. Compare with the reference and sample results in the source.
49 samples · Range: 15 to 52 μgAl/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 200 μgAl/l. Source parameter: Aluminium. Original mean: 20.71 μgAl/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Iron
! Exceedance reported in this period
Published mean
21.71 μgFe/l
Source reference: 200 μgFe/l
Can affect water colour, staining and taste. A historical result does not diagnose a change in your tap water today.
49 samples · Range: < 6 to 300 μgFe/l
The supplier reports 2.04% of results failing its requirement. This is a percentage, not a failure count. Read the investigation notes.
Original wording and source notes
Source reference: 200 μgFe/l. Source parameter: Iron. Original mean: 21.71 μgFe/l.
Source percentage of results failing the PCV: 2.04%. This is a historical percentage, not a count of failures or current incident advice.
Manganese
✓ No exceedances reported
Published mean
6.57 μgMn/l
Source reference: 50 μgMn/l
Can affect colour and deposits. Any reported exceedance needs the supplier’s investigation context.
49 samples · Range: 4 to 29 μgMn/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 50 μgMn/l. Source parameter: Manganese. Original mean: 6.57 μgMn/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Lead
✓ No exceedances reported
Published mean
0.76 μgPb/l
Source reference: 10 μgPb/l
Plumbing can affect lead at an individual tap. An area average cannot rule out a problem with pipes at your property.
50 samples · Range: < 0.30 to 7.70 μgPb/l
The source reports 0% failing its requirement across 50 samples. This describes the published period.
Original wording and source notes
Source reference: 10 μgPb/l. Source parameter: Lead. Original mean: 0.76 μgPb/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Copper
✓ No exceedances reported
Published mean
0.00 mgCu/l
Source reference: 2 mgCu/l
Can be influenced by plumbing. The area report does not replace investigation of a problem at an individual property.
4 samples · Range: 0.00 to 0.00 mgCu/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 2 mgCu/l. Source parameter: Copper. Original mean: 0.00 mgCu/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Arsenic
✓ No exceedances reported
Published mean
<0.20 μgAs/l
Source reference: 10 μgAs/l
A trace element monitored against a drinking-water requirement. Use the source results and units rather than taste or appearance to interpret it.
4 samples · Range: < 0.20 to < 0.20 μgAs/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 10 μgAs/l. Source parameter: Arsenic. Original mean: < 0.20 μgAs/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Cadmium
✓ No exceedances reported
Published mean
<0.02 μgCd/l
Source reference: 5 μgCd/l
A trace metal monitored in drinking water. A less-than result reports an upper bound, not a measured zero.
4 samples · Range: < 0.02 to < 0.02 μgCd/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 5 μgCd/l. Source parameter: Cadmium. Original mean: < 0.02 μgCd/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Chromium
✓ No exceedances reported
Published mean
<0.60 μgCr/l
Source reference: 50 μgCr/l
A trace metal monitored in drinking-water reports. Keep the source’s chemical definition and units when comparing results.
4 samples · Range: < 0.60 to < 0.60 μgCr/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 50 μgCr/l. Source parameter: Chromium. Original mean: < 0.60 μgCr/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Mercury
✓ No exceedances reported
Published mean
<0.02 μgHg/l
Source reference: 1 μgHg/l
A trace metal monitored against drinking-water requirements. Keep detection limits separate from exact measurements.
4 samples · Range: < 0.02 to < 0.02 μgHg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 1 μgHg/l. Source parameter: Mercury. Original mean: < 0.02 μgHg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Nickel
✓ No exceedances reported
Published mean
<0.80 μgNi/l
Source reference: 20 μgNi/l
A monitored metal that can be influenced by materials in contact with water. Local plumbing and sampling context matter.
4 samples · Range: < 0.80 to < 0.80 μgNi/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 20 μgNi/l. Source parameter: Nickel. Original mean: < 0.80 μgNi/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Antimony
✓ No exceedances reported
Published mean
<0.40 μgSb/l
Source reference: 5 μgSb/l
A trace element monitored in drinking water. The source reference and sample results provide the relevant comparison.
4 samples · Range: < 0.40 to < 0.40 μgSb/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 5 μgSb/l. Source parameter: Antimony. Original mean: < 0.40 μgSb/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Selenium
✓ No exceedances reported
Published mean
<1.20 μgSe/l
Source reference: 10 μgSe/l
A trace element monitored in drinking water. Its presence alone does not establish that a requirement was exceeded.
4 samples · Range: < 1.20 to < 1.20 μgSe/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 10 μgSe/l. Source parameter: Selenium. Original mean: < 1.20 μgSe/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Boron
✓ No exceedances reported
Published mean
<0.02 mgB/l
Source reference: 1 mgB/l
A dissolved element monitored in drinking water. The source reference applies to the parameter and units shown here.
4 samples · Range: < 0.02 to < 0.02 mgB/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 1 mgB/l. Source parameter: Boron. Original mean: < 0.02 mgB/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Microbiology 5 parameters
Coliform bacteria
! Exceedance reported in this period
Published mean
0.01 CFU/100ml
Source reference: 0 CFU/100ml
Used to monitor water-system hygiene. Interpret detections with the supplier’s sampling location and investigation notes.
191 samples · Range: 0 to 1 CFU/100ml
The supplier reports 0.52% of results failing its requirement. This is a percentage, not a failure count. Read the investigation notes.
Original wording and source notes
Source reference: 0 CFU/100ml. Source parameter: Coliform Bacteria (Total coliforms). Original mean: 0.01 CFU/100ml.
Source percentage of results failing the PCV: 0.52%. This is a historical percentage, not a count of failures or current incident advice.
E. coli
✓ No exceedances reported
Published mean
0 CFU/100ml
Source reference: 0 CFU/100ml
A microbiological indicator. The reported sample results and any failures matter more than an average bacterial count.
191 samples · Range: 0 to 0 CFU/100ml
The source reports 0% failing its requirement across 191 samples. This describes the published period.
Original wording and source notes
Source reference: 0 CFU/100ml. Source parameter: E. coli (Faecal coliforms). Original mean: 0 CFU/100ml.
Source note: printed once above this list (the same note appears on 41 parameters).
Enterococci
✓ No exceedances reported
Published mean
0 CFU/100ml
Source reference: 0 CFU/100ml
A microbiological indicator assessed through sample results. Read any reported failures with the supplier’s investigation notes.
49 samples · Range: 0 to 0 CFU/100ml
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0 CFU/100ml. Source parameter: Enterococci (Faecal streptococci). Original mean: 0 CFU/100ml.
Source note: printed once above this list (the same note appears on 41 parameters).
Clostridium perfringens
✓ No exceedances reported
Published mean
0 CFU/100ml
Source reference: 0 CFU/100ml
A microbiological indicator used in water-quality monitoring. Check the sample results and source investigation context.
49 samples · Range: 0 to 0 CFU/100ml
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0 CFU/100ml. Source parameter: Clostridium perfringens (Sulphite Reducing Clostridia). Original mean: 0 CFU/100ml.
Source note: printed once above this list (the same note appears on 41 parameters).
Colony count at 22°C
No numerical limit supplied
Published mean
0.59 CFU/ml
Source reference: Not supplied
A general bacterial count used to monitor changes in the supply. It is not equivalent to an E. coli result.
191 samples · Range: 0 to 26 CFU/ml
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Colony Counts After 3 Days At 22øc. Original mean: 0.59 CFU/ml.
Source note: printed once above this list (the same note appears on 7 parameters).
Other monitored substances 21 parameters
Nitrate
✓ No exceedances reported
Published mean
1.40 mgNO3/l
Source reference: 50 mgNO3/l
A dissolved compound monitored against drinking-water requirements. Its mean, highest reported result and sample count answer different questions.
4 samples · Range: 1.12 to 1.90 mgNO3/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 50 mgNO3/l. Source parameter: Nitrate. Original mean: 1.40 mgNO3/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Nitrite
✓ No exceedances reported
Published mean
0.02 mgNO2/l
Source reference: 0.5 mgNO2/l
A nitrogen compound monitored in water supplies. Requirements can depend on where the sample was collected; use the reference printed in this report.
49 samples · Range: < 0.02 to 0.13 mgNO2/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0.5 mgNO2/l. Source parameter: Nitrite. Original mean: 0.02 mgNO2/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Nitrite/Nitrate formula
No numerical limit supplied
Published mean
0.04 Unitless
Source reference: Not supplied
About this parameter: see the note above this list.
4 samples · Range: 0.02 to 0.07 Unitless
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Nitrite/Nitrate formula. Original mean: 0.04 Unitless.
Source note: printed once above this list (the same note appears on 7 parameters).
Ammonium (total)
✓ No exceedances reported
Published mean
0.27 mg/l as NH4
Source reference: 0.5 mg/l as NH4
About this parameter: see the note above this list.
49 samples · Range: 0.20 to 0.32 mg/l as NH4
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0.5 mg/l as NH4. Source parameter: Ammonium (total). Original mean: 0.27 mg/l as NH4.
Source note: printed once above this list (the same note appears on 41 parameters).
PAH - Sum Of 4 Substances
✓ No exceedances reported
Published mean
<0.02 μg/l
Source reference: 0.1 μg/l
About this parameter: see the note above this list.
3 samples · Range: < 0.02 to < 0.02 μg/l
The source reports 0% failing its requirement across 3 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 0.1 μg/l. Source parameter: PAH - Sum Of 4 Substances. Original mean: < 0.02 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Benzo 3_4 Pyrene
✓ No exceedances reported
Published mean
<0.00 μg/l
Printed by the supplier as “< 0.00”. It is not a measured zero or “none detected”; read it with the range below.
Source reference: 0.01 μg/l
About this parameter: see the note above this list.
3 samples · Range: < 0.00 to < 0.00 μg/l
The source reports 0% failing its requirement across 3 samples. This describes the published period.
Original wording and source notes
Source reference: 0.01 μg/l. Source parameter: Benzo 3_4 Pyrene. Original mean: < 0.00 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice. The source rounds this result to <0.00; this does not mean zero was measured.
Chlorate
✓ No exceedances reported
Published mean
0.07 mg/l
Source reference: 0.25 mg/l
About this parameter: see the note above this list.
49 samples · Range: 0.03 to 0.14 mg/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 0.25 mg/l. Source parameter: Chlorate. Original mean: 0.07 mg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Chlorite
✓ No exceedances reported
Published mean
<0.02 mg/l
Source reference: 0.25 mg/l
About this parameter: see the note above this list.
49 samples · Range: < 0.02 to < 0.02 mg/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 0.25 mg/l. Source parameter: Chlorite. Original mean: < 0.02 mg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Bromate
✓ No exceedances reported
Published mean
0.96 μgBrO3/l
Source reference: 10 μgBrO3/l
About this parameter: see the note above this list.
49 samples · Range: < 0.90 to 1.80 μgBrO3/l
The source reports 0% failing its requirement across 49 samples. This describes the published period.
Original wording and source notes
Source reference: 10 μgBrO3/l. Source parameter: Bromate. Original mean: 0.96 μgBrO3/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Cyanide
✓ No exceedances reported
Published mean
1.75 μgCN/l
Source reference: 50 μgCN/l
About this parameter: see the note above this list.
4 samples · Range: < 1 to 2 μgCN/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 50 μgCN/l. Source parameter: Cyanide. Original mean: 1.75 μgCN/l.
Source note: printed once above this list (the same note appears on 41 parameters).
HAA5 Total
✓ No exceedances reported
Published mean
4.83 μg/l
Source reference: 60 μg/l
About this parameter: see the note above this list.
4 samples · Range: 2.50 to 7.20 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 60 μg/l. Source parameter: HAA5 Total. Original mean: 4.83 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Gross alpha activity
No numerical limit supplied
Published mean
<0.04 Bq/l
Source reference: Not supplied
A radioactivity screening measurement in becquerels per litre (Bq/l).
4 samples · Range: < 0.04 to < 0.04 Bq/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: Not supplied. Source parameter: Gross Alpha Activity. Original mean: < 0.04 Bq/l.
Source note: printed once above this list (the same note appears on 7 parameters).
Gross beta activity
No numerical limit supplied
Published mean
<0.04 Bq/l
Source reference: Not supplied
A radioactivity screening measurement in becquerels per litre (Bq/l).
4 samples · Range: < 0.04 to < 0.04 Bq/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: Not supplied. Source parameter: Gross Beta Activity. Original mean: < 0.04 Bq/l.
Source note: printed once above this list (the same note appears on 7 parameters).
Uranium
✓ No exceedances reported
Published mean
<0.04 μgU/l
Source reference: 30 μgU/l
About this parameter: see the note above this list.
4 samples · Range: < 0.04 to < 0.04 μgU/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 30 μgU/l. Source parameter: Uranium. Original mean: < 0.04 μgU/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Microcystin LR
✓ No exceedances reported
Published mean
<0.05 μg/l
Source reference: 1 μg/l
About this parameter: see the note above this list.
4 samples · Range: < 0.05 to < 0.05 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 1 μg/l. Source parameter: Microcystin LR. Original mean: < 0.05 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Tetrachloromethane
✓ No exceedances reported
Published mean
<0.08 μg/l
Source reference: 3 μg/l
About this parameter: see the note above this list.
4 samples · Range: < 0.08 to < 0.08 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 3 μg/l. Source parameter: Tetrachloromethane. Original mean: < 0.08 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Tetrachloroethene/Trichloroethene - Sum Of 2 Substances
✓ No exceedances reported
Published mean
<0.52 μg/l
Source reference: 10 μg/l
About this parameter: see the note above this list.
4 samples · Range: < 0.52 to < 0.52 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 10 μg/l. Source parameter: Tetrachloroethene/Trichloroethene - Sum Of 2 Substances. Original mean: < 0.52 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Total Trihalomethanes
✓ No exceedances reported
Published mean
8.65 μg/l
Source reference: 100 μg/l
About this parameter: see the note above this list.
4 samples · Range: 6.40 to 10.90 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
Original wording and source notes
Source reference: 100 μg/l. Source parameter: Total Trihalomethanes. Original mean: 8.65 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
1_2 Dichloroethane
✓ No exceedances reported
Published mean
<0.09 μg/l
Source reference: 3 μg/l
About this parameter: see the note above this list.
4 samples · Range: < 0.09 to < 0.09 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 3 μg/l. Source parameter: 1_2 Dichloroethane. Original mean: < 0.09 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Benzene
✓ No exceedances reported
Published mean
<0.08 μg/l
Source reference: 1 μg/l
About this parameter: see the note above this list.
4 samples · Range: < 0.08 to < 0.08 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 1 μg/l. Source parameter: Benzene. Original mean: < 0.08 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
BISPHENOL A
✓ No exceedances reported
Published mean
<0.13 μg/l
Source reference: 2.5 μg/l
About this parameter: see the note above this list.
4 samples · Range: < 0.13 to < 0.13 μg/l
The source reports 0% failing its requirement across 4 samples. This describes the published period.
“<” is part of the source result. It is not an exact concentration or a measured zero.
Original wording and source notes
Source reference: 2.5 μg/l. Source parameter: BISPHENOL A. Original mean: < 0.13 μg/l.
Source note: printed once above this list (the same note appears on 41 parameters).
Separate hardness publication · 2024
These mineral results come from the retained hardness source and have their own reporting period.
Hardness and minerals 3 parameters
Total hardness
No numerical limit supplied
Published mean
30.60 mg/l as CaCO₃
Source reference: Not supplied
Dissolved calcium and magnesium affect limescale and appliance settings. This is a mineral description, not a safety score.
Sample count not supplied · Range: — to — mg/l as CaCO₃
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Supplier-calculated annual hardness. Original mean: 30.60 mg/l as CaCO₃.
Scottish Water calculates hardness from annual average calcium and magnesium measurements. This is the supplier’s published 2024 figure, not a WaterGrade estimate. Sample counts and ranges are not published in this table. Supplier classification: Soft.
Calcium
No numerical limit supplied
Published mean
10.04 mg Ca/l
Source reference: Not supplied
A naturally occurring mineral that contributes to hardness. Calcium alone is not the same measurement as total hardness.
Sample count not supplied · Range: — to — mg Ca/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Calcium. Original mean: 10.04 mg Ca/l.
Magnesium
No numerical limit supplied
Published mean
1.35 mg Mg/l
Source reference: Not supplied
A naturally occurring mineral that contributes to hardness alongside calcium.
Sample count not supplied · Range: — to — mg Mg/l
This report gives no numerical limit for this parameter. A higher or lower number is not automatically better.
Original wording and source notes
Source reference: Not supplied. Source parameter: Magnesium. Original mean: 1.35 mg Mg/l.
Sources, dates and how to interpret this page
- Reporting period
- 2025
- Source retrieved
- 2026-09-06
- Last verified source check
- 2026-09-06
- Original publication
- Scottish Water report ↗
Official annual quality PDF downloaded through the supplier-linked browser PDF viewer. Hosted collection remains restricted; the weekly browser agent maintains this source.
This report covers 2025 quality samples. Hardness comes from a separate annual publication and retains its own date.
Failure percentages are historical source results. They are not failure counts, an overall safety score or current incident advice. Ask Scottish Water for investigation context and current advice.
Scottish Water calculates hardness from annual average calcium and magnesium measurements. This is the supplier’s published 2024 figure, not a WaterGrade estimate. Sample counts and ranges are not published in this table. Supplier classification: Soft.
Scottish Water calculates this annual hardness from calcium and magnesium measurements. The hardness table does not publish sample counts or ranges.
Status labels describe the published parameter and period. Historical exceedances do not automatically establish a current incident. Numerical limits are taken from the original report, not applied indiscriminately across countries, dates or sampling locations. DWI explains how standards work in England and Wales.
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