River Water Surveys.

Santry River. Stardust Memorial Park. 22nd November 2023 10.02
No Foam, Floating Algae or oily sheen. There is no algae present.
I can see some litter in the water, within 1m of the waters edge, within 1.5m of the waters edge.
Steady water flow. Light showers in the last 24 hours.
Nitrate 1-2mg/l
Phosphate 0.02-0.05mg/l
Turbidity <14 NTU
Macroinvertebrates CSSI Test
None: Stonefly, Flattened mayfly or green caddisfly
Some: Leech, Waterlouse, Snail
CSSI test, -7, Water is of POOR Quality

Santry River. Stardust Memorial Park. 4th October 2023 10.03
The water has a slight oily sheen. There is no algae present.
I can see some litter in the water, within 1m of the waters edge, within 1.5m of the waters edge.
Steady water flow. Light showers in the last 24 hours.
Nitrate 1-2mg/l
Phosphate 0.1-0.2mg/l
Turbidity <14 NTU
Macroinvertebrates CSSI Test
None: Stonefly, Flattened mayfly or green caddisfly
Some: Leech, Waterlouse, Snail
CSSI test, -6, Water is of POOR Quality

Santry River. Stardust Memorial Park. 13th September 2023 09.54
The is some floating algae and an oily sheen. A mobile phone is submerged in the water
I can see some litter in the water, within 1m of the waters edge, within 1.5m of the waters edge.
Steady water flow. No rain today but there has been rain recently
Nitrate 1-2mg/l
Phosphate 0.1-0.2mg/l
Turbidity <14 NTU
Macroinvertebrates CSSI Test
None: Stonefly, Flattened mayfly or green caddisfly
Some: Leech, Waterlouse, baetis mayfly.
CSSI test, -6, Water is of POOR Quality

Santry River. Stardust Memorial Park. 30th August 2023 09.42
The water has an oily sheen
There is no algae present
I can see aluminium cans in the river and on the river bank
The weather has been dry, the water level quite low and slow moving
Nitrate 0.5-1mg/l
Phosphate 0.5-1mg/l
Turbidity <14 NTU

Using chatGPT to analyse.

Certainly, here’s a comprehensive summary including all the information:

• November 22, 2023:
• Water appearance: Clean, no foam, floating algae, or oily sheen.
• Litter: Some within 1.5m of the water’s edge.
• Water flow: Steady.
• Weather: Light showers in the last 24 hours.
• Nitrate: Acceptable (1-2mg/l).
• Phosphate: Low (0.02-0.05mg/l).
• Turbidity: <14 NTU.
• Macroinvertebrate CSSI Test: -7, indicating poor water quality.
• October 4, 2023:
• Water appearance: Slight oily sheen.
• Litter: Some within 1.5m of the water’s edge.
• Water flow: Steady.
• Weather: Light showers in the last 24 hours.
• Nitrate: Acceptable (1-2mg/l).
• Phosphate: Increasing, still within moderate range (0.1-0.2mg/l).
• Turbidity: <14 NTU.
• Macroinvertebrate CSSI Test: -6, indicating poor water quality.
• September 13, 2023:
• Water appearance: Floating algae and oily sheen. Submerged mobile phone.
• Litter: Some within 1.5m of the water’s edge.
• Water flow: Steady. Recent rain.
• Nitrate: Acceptable (1-2mg/l).
• Phosphate: Increasing, still within moderate range (0.1-0.2mg/l).
• Turbidity: <14 NTU.
• Macroinvertebrate CSSI Test: -6, indicating poor water quality.
• August 30, 2023:
• Water appearance: Oily sheen.
• Litter: Aluminum cans in the river and on the riverbank.
• Water flow: Dry weather, low water level, slow-moving.
• Nitrate: Slightly lower but generally acceptable (0.5-1mg/l).
• Phosphate: Increasing, still within moderate range (0.5-1mg/l).
• Turbidity: <14 NTU.

Overall:

• Nitrate levels are generally acceptable.
• Phosphate levels are showing a trend of increase, indicating potential pollution from various sources.
• Presence of litter, an oily sheen, and floating algae suggests a need for further investigation and water quality improvement measures.