405 Los Angeles TDS EC pH Water Testing
This water test was completed right next to the 405 in Los Angeles near Santa Monica at a private residence. The water was taken directly from a tap and placed in a cup with the meter. The results show a lower tap water quality that other parts of Los Angeles at this time.
Normally I have seen tap water have slightly lower TDS and EC readings such as around 240 ppm for TDS near UCLA or 400 ppm or less TDS near the harbor area. These readings do meet the EPA secondary maximum standards.
Is water important?
Many of the food providers including pizza places and fast food locations are using this tap water for drinking, beverages, and other food related purposes as well so it is good to know where the water comes from that you are taking into your system. I suggest at least finding out what type of filtration they use before consuming the water.
Water Testing Cost
I own the meter so this test only costs a few minutes of the battery life and the time it takes to read it. Testing can be done to any water with this meter from Hanna including lake water, sea water, tap water, brackish water, and filtered water. It includes EC, TDS, and pH with Temp.
405 Los Angeles Water Testing
I am not a professional water tester and I can not say if water is safe or not to drink. Also, I was only able to do three tests and there are many other tests that can be done to determine water quality. These are the Secondary Maximum Contaminant Levels from the EPA:
| Total Dissolved Solids (TDS) | 500 mg/L | hardness; deposits; colored water; staining; salty taste |
| pH | 6.5 – 8.5 | low pH: bitter metallic taste; corrosion high pH: slippery feel; soda taste; deposits |
You can also read more about EC and water quality on this site.
This first test shows a 8.41 pH of the tap water:
405 Los Angeles pH 8.41 Water Quality
This second test shows a TDS of 472 ppm in the tap Water
405 Los Angeles TDS 472 ppm Tap Water
The third EC test shows 946:
405 Los Angeles Water EC of 946!
Would I drink this water?
I hope not. The EC shows much more salts than normal in the water. The TDS show much harder water than I would suggest drinking since we do not know what materials are in the water. The pH is much to high as well and the test is just a little under the EPA secondary maximum contaminant levels.
I would try to filter this water and only drink it if I was suffering from dehydration. I would want to at least put it through an RO filter but a carbon block or even a fine screen or paper filtration would improve the quality.
