Technique of sanitary inspection of water supply sources

Sanitary inspection includes three basic positions:

· Sanitary-topographical inspection of its environment;

· Sanitary-engineering inspection of the condition of an equipment of water source.

· Sanitary-and-epidemiologic inspection of area placing of water source.

The important practical value has definition of water quantity in the source of water and it debit (productivity).

For example, in a well with concrete rings quantity of water define under the formula:

V = π R² h,

where: V – quantity of water in a well, m³;

π - 3.14;

R - ring radius, m;

h - thickness of sheet of water, m.

Calculation of necessary quantity of chloric with any percent (%) of active chlorine for disinfection of wells

Water volume in a well makes 1 m³ (or any other volume, you can see in the situational task), at the concentration of active chlorine … % (see to the situational task) for water disinfecting is necessary to calculate chloric exhaust quantity (P), by such formula:

E (m³) · C (100 mg/dm³) · 100

Р = H (%) = … gram, were

E – volume of water in well, m³,

C – given concentration of active chlorine in water well, gram/ m³,

H – content of active chlorine in disinfection, %,

100 – constant coefficient number.

Example.

1m³ х 100 mg/dm³ х 100

Р = 25 % = 400 gram, where

E – volume of water in well, (1 m³),

C – given concentration of active chlorine in water well, (100 gram/ m³),

H – content of active chlorine in disinfection, (25 %),

100 – constant coefficient number.

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