Glencorse C: supplier water report
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Scottish Water · Supply area: Glencorse C
Published water hardness
30.6mg/l as CaCO₃
Soft
Hardness reporting period: 2024
The latest quality report does not include hardness. This hardness comes from a separate retained supplier source, retrieved 2026-09-06. Its period must not be assumed to match the quality report below.
Scottish Water calculates this annual hardness from its calcium and magnesium measurements. We show the supplier’s published figure. Sample counts and ranges are not provided in the hardness table.
This result describes dissolved minerals. Use your appliance manual for settings and care instructions. Hardness is not a health or safety score.
0.31 mmol/l
A conversion of the published hardness, not another test. Follow your appliance’s model-specific instructions.
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.
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 | 30.6 | —–— | 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.
Inside the supplier report
Period: 2025. Summary values do not establish that every sample complied. Read the supplier’s notes for investigations and actions.
Hardness and minerals 4 parameters
Useful for understanding mineral composition and appliance settings. Different minerals are separate measurements; hardness does not determine them all.
Chloride6.53 mgCl/l
Source parameter: Chloride. Published mean: 6.53 mgCl/l.
Samples: 49. Range: 5 to 8.
Source limit or reference: 250 mgCl/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Sulphate10.65 mgSO4/l
Source parameter: Sulphate. Published mean: 10.65 mgSO4/l.
Samples: 4. Range: 10 to 11.70.
Source limit or reference: 250 mgSO4/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Sodium4.78 mgNa/l
Source parameter: Sodium. Published mean: 4.78 mgNa/l.
Samples: 4. Range: 4.70 to 4.90.
Source limit or reference: 200 mgNa/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Fluoride<0.12 mgF/l
Source parameter: Fluoride. Published mean: < 0.12 mgF/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.12 to < 0.12.
Source limit or reference: 1.5 mgF/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Taste, appearance and treatment 9 parameters
These are published sample results. They cannot diagnose a change in taste, smell or appearance at your tap today.
Colour2 mg/l Pt/Co
Source parameter: Colour. Published mean: 2 mg/l Pt/Co.
Samples: 49. Range: < 2 to 2.
Source limit or reference: 20 mg/l Pt/Co.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Turbidity0.3 NTU
Source parameter: Turbidity. Published mean: 0.30 NTU.
Samples: 49. Range: < 0.30 to 0.30.
Source limit or reference: 4 NTU.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Odour0 Dilution number
Source parameter: Odour. Published mean: 0 Dilution number.
Samples: 49. Range: 0 to 0.
Source limit or reference: 0 Dilution number.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Taste0 Dilution number
Source parameter: Taste. Published mean: 0 Dilution number.
Samples: 49. Range: 0 to 0.
Source limit or reference: 0 Dilution number.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
pH (acidity / alkalinity)8.05 pH units
Source parameter: Hydrogen ion (pH). Published mean: 8.05 pH units.
Samples: 49. Range: 7.70 to 8.50.
Source limit or reference: 9.5 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.
Compliance counts are not retained for this entry. Check the original report.
Residual Disinfectant - Free0.08 mg/l
Source parameter: Residual Disinfectant - Free. Published mean: 0.08 mg/l.
Samples: 192. Range: 0.04 to 0.29.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Residual Disinfectant - Total1.05 mg/l
Source parameter: Residual Disinfectant - Total. Published mean: 1.05 mg/l.
Samples: 192. Range: 0.69 to 1.28.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Conductivity84.53 μS/cm
Source parameter: Conductivity. Published mean: 84.53 μS/cm.
Samples: 49. Range: 80 to 93.
Source limit or reference: 2500 μS/cm.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Total organic carbon1.05 mgC/l
Source parameter: Total organic carbon. Published mean: 1.05 mgC/l.
Samples: 4. Range: 0.90 to 1.30.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Metals 13 parameters
Keep the units and sampling context when comparing results. Plumbing at an individual property can affect metal measurements.
Aluminium20.71 μgAl/l
Source parameter: Aluminium. Published mean: 20.71 μgAl/l.
Samples: 49. Range: 15 to 52.
Source limit or reference: 200 μgAl/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Iron21.71 μgFe/l
Source parameter: Iron. Published mean: 21.71 μgFe/l.
Samples: 49. Range: < 6 to 300.
Source limit or reference: 200 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.
Compliance counts are not retained for this entry. Check the original report.
Manganese6.57 μgMn/l
Source parameter: Manganese. Published mean: 6.57 μgMn/l.
Samples: 49. Range: 4 to 29.
Source limit or reference: 50 μgMn/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Lead0.76 μgPb/l
Source parameter: Lead. Published mean: 0.76 μgPb/l.
Samples: 50. Range: < 0.30 to 7.70.
Source limit or reference: 10 μgPb/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Copper0 mgCu/l
Source parameter: Copper. Published mean: 0.00 mgCu/l.
Samples: 4. Range: 0.00 to 0.00.
Source limit or reference: 2 mgCu/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Arsenic<0.2 μgAs/l
Source parameter: Arsenic. Published mean: < 0.20 μgAs/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.20 to < 0.20.
Source limit or reference: 10 μgAs/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Cadmium<0.02 μgCd/l
Source parameter: Cadmium. Published mean: < 0.02 μgCd/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.02 to < 0.02.
Source limit or reference: 5 μgCd/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Chromium<0.6 μgCr/l
Source parameter: Chromium. Published mean: < 0.60 μgCr/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.60 to < 0.60.
Source limit or reference: 50 μgCr/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Mercury<0.02 μgHg/l
Source parameter: Mercury. Published mean: < 0.02 μgHg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.02 to < 0.02.
Source limit or reference: 1 μgHg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Nickel<0.8 μgNi/l
Source parameter: Nickel. Published mean: < 0.80 μgNi/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.80 to < 0.80.
Source limit or reference: 20 μgNi/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Antimony<0.4 μgSb/l
Source parameter: Antimony. Published mean: < 0.40 μgSb/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.40 to < 0.40.
Source limit or reference: 5 μgSb/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Selenium<1.2 μgSe/l
Source parameter: Selenium. Published mean: < 1.20 μgSe/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 1.20 to < 1.20.
Source limit or reference: 10 μgSe/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Boron<0.02 mgB/l
Source parameter: Boron. Published mean: < 0.02 mgB/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.02 to < 0.02.
Source limit or reference: 1 mgB/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Microbiology 5 parameters
Open each result for sample counts and reported contraventions. An unavailable mean is not a zero result. The supplier’s investigation notes provide essential context.
Coliform Bacteria (Total coliforms)0.01 CFU/100ml
Source parameter: Coliform Bacteria (Total coliforms). Published mean: 0.01 CFU/100ml.
Samples: 191. Range: 0 to 1.
Source limit or reference: 0 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.
Compliance counts are not retained for this entry. Check the original report.
E. coli (Faecal coliforms)0 CFU/100ml
Source parameter: E. coli (Faecal coliforms). Published mean: 0 CFU/100ml.
Samples: 191. Range: 0 to 0.
Source limit or reference: 0 CFU/100ml.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Enterococci (Faecal streptococci)0 CFU/100ml
Source parameter: Enterococci (Faecal streptococci). Published mean: 0 CFU/100ml.
Samples: 49. Range: 0 to 0.
Source limit or reference: 0 CFU/100ml.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Clostridium perfringens (Sulphite Reducing Clostridia)0 CFU/100ml
Source parameter: Clostridium perfringens (Sulphite Reducing Clostridia). Published mean: 0 CFU/100ml.
Samples: 49. Range: 0 to 0.
Source limit or reference: 0 CFU/100ml.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Colony Counts After 3 Days At 22øc0.59 CFU/ml
Source parameter: Colony Counts After 3 Days At 22øc. Published mean: 0.59 CFU/ml.
Samples: 191. Range: 0 to 26.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Other monitored substances 21 parameters
The source names are retained so you can find the same entry in the original report. A less-than symbol means the reported number is not an exact concentration.
Nitrate1.4 mgNO3/l
Source parameter: Nitrate. Published mean: 1.40 mgNO3/l.
Samples: 4. Range: 1.12 to 1.90.
Source limit or reference: 50 mgNO3/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Nitrite0.02 mgNO2/l
Source parameter: Nitrite. Published mean: 0.02 mgNO2/l.
Samples: 49. Range: < 0.02 to 0.13.
Source limit or reference: 0.5 mgNO2/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Nitrite/Nitrate formula0.04 Unitless
Source parameter: Nitrite/Nitrate formula. Published mean: 0.04 Unitless.
Samples: 4. Range: 0.02 to 0.07.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Ammonium (total)0.27 mg/l as NH4
Source parameter: Ammonium (total). Published mean: 0.27 mg/l as NH4.
Samples: 49. Range: 0.20 to 0.32.
Source limit or reference: 0.5 mg/l as NH4.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
PAH - Sum Of 4 Substances<0.02 μg/l
Source parameter: PAH - Sum Of 4 Substances. Published mean: < 0.02 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 3. Range: < 0.02 to < 0.02.
Source limit or reference: 0.1 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Benzo 3_4 Pyrene<0 μg/l
Source parameter: Benzo 3_4 Pyrene. Published mean: < 0.00 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 3. Range: < 0.00 to < 0.00.
Source limit or reference: 0.01 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.
Compliance counts are not retained for this entry. Check the original report.
Chlorate0.07 mg/l
Source parameter: Chlorate. Published mean: 0.07 mg/l.
Samples: 49. Range: 0.03 to 0.14.
Source limit or reference: 0.25 mg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Chlorite<0.02 mg/l
Source parameter: Chlorite. Published mean: < 0.02 mg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 49. Range: < 0.02 to < 0.02.
Source limit or reference: 0.25 mg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Bromate0.96 μgBrO3/l
Source parameter: Bromate. Published mean: 0.96 μgBrO3/l.
Samples: 49. Range: < 0.90 to 1.80.
Source limit or reference: 10 μgBrO3/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Cyanide1.75 μgCN/l
Source parameter: Cyanide. Published mean: 1.75 μgCN/l.
Samples: 4. Range: < 1 to 2.
Source limit or reference: 50 μgCN/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
HAA5 Total4.83 μg/l
Source parameter: HAA5 Total. Published mean: 4.83 μg/l.
Samples: 4. Range: 2.50 to 7.20.
Source limit or reference: 60 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Gross Alpha Activity<0.04 Bq/l
Source parameter: Gross Alpha Activity. Published mean: < 0.04 Bq/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.04 to < 0.04.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Gross Beta Activity<0.04 Bq/l
Source parameter: Gross Beta Activity. Published mean: < 0.04 Bq/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.04 to < 0.04.
No PCV is shown for this parameter; the source’s zero in its failure-percentage column is not evidence of regulatory compliance.
Compliance counts are not retained for this entry. Check the original report.
Uranium<0.04 μgU/l
Source parameter: Uranium. Published mean: < 0.04 μgU/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.04 to < 0.04.
Source limit or reference: 30 μgU/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Microcystin LR<0.05 μg/l
Source parameter: Microcystin LR. Published mean: < 0.05 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.05 to < 0.05.
Source limit or reference: 1 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Tetrachloromethane<0.08 μg/l
Source parameter: Tetrachloromethane. Published mean: < 0.08 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.08 to < 0.08.
Source limit or reference: 3 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Tetrachloroethene/Trichloroethene - Sum Of 2 Substances<0.52 μg/l
Source parameter: Tetrachloroethene/Trichloroethene - Sum Of 2 Substances. Published mean: < 0.52 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.52 to < 0.52.
Source limit or reference: 10 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Total Trihalomethanes8.65 μg/l
Source parameter: Total Trihalomethanes. Published mean: 8.65 μg/l.
Samples: 4. Range: 6.40 to 10.90.
Source limit or reference: 100 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
1_2 Dichloroethane<0.09 μg/l
Source parameter: 1_2 Dichloroethane. Published mean: < 0.09 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.09 to < 0.09.
Source limit or reference: 3 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Benzene<0.08 μg/l
Source parameter: Benzene. Published mean: < 0.08 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.08 to < 0.08.
Source limit or reference: 1 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
BISPHENOL A<0.13 μg/l
Source parameter: BISPHENOL A. Published mean: < 0.13 μg/l.
The symbol is part of the source result; do not treat this as an exact concentration.
Samples: 4. Range: < 0.13 to < 0.13.
Source limit or reference: 2.5 μg/l.
Source percentage of results failing the PCV: 0%. This is a historical percentage, not a count of failures or current incident advice.
Compliance counts are not retained for this entry. Check the original report.
Unlisted parameters are not necessarily absent from the water. They may be unavailable in this extraction. The full supplier report remains the primary reference.
Source, dates and help
- Reporting period
- 2025
- Source retrieved
- 2026-09-06
- Last verified source check
- 2026-09-06
- Original source
- 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.
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