Guideline Values for Chemical and Physical Water Composition

THE FOLLOWING VALUES ARE TYPICAL GUIDE LEVELS FOR TOXIC OR AESTHETIC REASONS.  NEVERTHELESS AN EXPERT SHOULD ANALYSE EVERY SCENARIO AND USE BEFORE DECIDING THE ACTUAL MAXIMUM LIMIT.

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Element or Property Guide Level for Human Use Guide Limit for Irrigation Guide Limit for Livestock Drinking Treatment
E-Coli (Escherichia coli)
Should not be detected in a 100 mL sample
Turbidity
0.5 NTU
(5 NTU is just noticeable in a glass)
1 NTU
1 NTU
Filtration (+ floculation)
PH
6.5 - 8.5
5.5 - 7
6.5 - 8.5
PH Correction
Total Dissolved Solids TDS (salinity)
600 mg/l
Beans, strawberry: 450 mg/l
Capsicum, lettuce: 800 mg/l
Cucumber, eggplant, rockmelon, tomato: 1800 mg/l
Cattle: 2400 mg/l
Sheep: 4000 mg/l
Chickens: 2000 mg/l
Reverse Osmosis
Hardness
60-200 mg/l of CaCO3
350 mg/l of CaCO3
60-200 mg/l of CaCO3
Ion Exchange
Reverse Osmosis
Aluminium (Al)
0.2 mg/l
5.0 mg/l
Cattle: 5.6 mg/l
Sheep: 5.1 mg/l
Chickens: 3.6 mg/l
Filtration (+ floculation)
Ammonia (NH4)
0.5 mg/l
5.0 mg/l
--
Chemical Oxidation + Filtration
Arsenic (As)
0.01 mg/l
0.1 mg/l
0.1 mg/l
Filtration (+ coagulation)
Reverse Osmosis
Cadmium (Cd)
0.002 mg/l
0.01 mg/l
0.01 mg/l
Hydroxide precipitation + PH control
Chloride (Cl)
250 mg/l
Almond, apricot, citrus, plum, grape: 170 mg/l
Potato, tomato: 350 mg/l
Barley, cucumber: 700 mg/l
250 mg/l
Reverse Osmosis
Copper (Cu)
0.5 mg/l
0.2 mg/l
0.5 mg/l
Hydroxide precipitation + PH control
Fluoride (F)
1.5 mg/l
1 mg/l
1.5 mg/l
Activated Alumina + PH control or Reverse Osmosis
Iron (Fe)
0.2 mg/l
0.2 mg/l
1 mg/l
Filtration (+ pre-oxidation)
Lead (Pb)
0.01 mg/l
2 mg/l
0.1 mg/l
Hydroxide precipitation + PH control
Manganese (Mn)
0.05 mg/l
0.2 mg/l
0.6 mg/l
Filtration (+ pre-oxidation)
Nickel (Ni)
0.02 mg/l
0.2 mg/l
1 mg/l
Hydroxide precipitation + PH control
Sodium (Na)
180 mg/l
Almond, apricot, citrus, plum, grape: 115 mg/l
Potato, tomato: 230 mg/l
Barley, cucumber: 460 mg/l
180 mg/l
Reverse Osmosis
Sulfate (SO4)
250 mg/l
---
1000 mg/l
Reverse Osmosis
Zinc (Zn)
0.1 mg/l
2 mg/l
5 mg/l
Hydroxide precipitation + PH control

These values are for reference only and subject to updates. Look for expert advice before deciding which values are more appropriate for your use/business. Alscore will not accept responsibility for any loss or damage in connection with the use of these values.

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*(1) All data for information only and subject to change based on actual water analysis and final design parameters

Media Filtration

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