In order to verify the quality of surface water, we recommend analysis of following indicators, for which limiting concentrations for salmonid waters and cyprinid waters are given in the Regulations of the Cabinet of Ministers of Latvia No. 118 (12.03.2002.) Appendix 3.:
|Indicators||Target values/limit values|
|Salmonid waters||KCyprinid waters|
|Ammonium ions, NH4 and ammonium, NH3||≤0,03/≤0,78||≤0,16/≤0,78|
|Biochemical oxygen demand (BOD)||≤2/-||≤4/-|
|Dissolved oxygen and temperature||(7 to 9)/ 9||(5 to 8)/ ≥7|
|Nitrite ions, NO2||≤0,01/ -||≤0,03/ -|
|pH (normal conditions)||-/6 to 9||-/6 to 9|
The price for complete analysis EUR 21,00 + tax EUR 4,41 = EUR 25,41
The sample should be taken in a 1L plastic or glass bottle with a screw-on plastic cap. Hold the bottle vertically, immerse it below the water level and fill it with the water sample up to the top.
When taking a sample, must be careful of turning water muddy what occurs when stepped into the water.
The sample should be delivered to the laboratory within 12-16 hours.
For dissolved oxygen measurments, it is necessary to deliver the sample as soon as possible to the laboratory on the same day as the sample was taken.
The quality of the swimming water is tested and evaluated according to its microbiological parameters - E-coli and intestinal enterococci.
These indicators have limit values that can not be exceeded so that they do not endanger human health while swimming.
According to the Cabinet of Ministers Regulations No. 692 (01.12.2017.):
The quality of the water in the swimming pool is supervised and evaluated according to its chemical and microbiological parameters according to the Regulations of the Cabinet of Ministers No. 37 (13.01.2009.):
|For chemical analyses|
|Ammonium ions, NH4||0.5 mg/L|
|Nitrate ions, NO3||50 mg/L|
|Permanganate index (oxidisability)||8 mg/L|
|Clearness||The water should be clear|
|Free chlorine||1.0 mg/L|
|For microbiological indicators|
|E-coli number||0 KVV/100mL|
|Pseudomonas aeruginosa number in 100mL||0 KVV/100mL|
The price for a complete analysis EUR 47,02 + tax EUR 9,87 = EUR 56,89
A complete analysis could not be made, but depending on the visual assessment of the pool water sample, you can choose indicators that are more relevant to each of individual cases.
1st Price EUR 4,13 + tax EUR 0,87 = EUR 5,00
The price includes: pH, organic matter content.
2nd Price EUR 48,59 + tax EUR 10,20 = EUR 58,79