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\begin{tabular}{|c|c|c|c|}
\hline
& \begin{tabular}{l}
Acceptable Levels \\
(MCL = Maximum \\
Contaminant Level)
\end{tabular} & \begin{tabular}{l}
Tap Water \\
Measurement \\
(mg/L)
\end{tabular} & \begin{tabular}{l}
Outdoor \\
Water \\
Measurement \\
(mg/L)
\end{tabular} \\
\hline
\begin{tabular}{l}
pH and Total \\
Alkalinity
\end{tabular} & \begin{tabular}{l}
pH: between 6.5 to 8.5 \\
Total alkalinity: There is no \\
health standard. Values near \\
150 are considered ideal.
\end{tabular} & \begin{tabular}{l}
pH: 7.2 \\
Total alkalinity: [tex]$160 \, mg/L$[/tex]
\end{tabular} & \\
\hline
Total Hardness & below 500 ppm ([tex]$500 \, mg/L$[/tex]) & \begin{tabular}{l}
Total hardness: \\
[tex]$350 \, mg/L$[/tex]
\end{tabular} & \\
\hline
\begin{tabular}{l}
Nitrate/Nitrite \\
and Nitrite- \\
Nitrogen
\end{tabular} & \begin{tabular}{l}
Nitrate/Nitrite [tex]$MCL = 10 \, ppm$[/tex] \\
([tex]$10 \, mg/L$[/tex]) \\
Nitrite-nitrogen [tex]$MCL = 1.0 \, ppm$[/tex] \\
([tex]$1.0 \, mg/L$[/tex])
\end{tabular} & & \\
\hline
Iron [tex]$\left( \text{Fe}^{-2} / \text{Fe}^{+3} \right)$[/tex] & \begin{tabular}{l}
Iron [tex]$MCL = 500 \, ppm$[/tex] \\
([tex]$500 \, mg/L$[/tex])
\end{tabular} & & \\
\hline
\begin{tabular}{l}
Copper \\
([tex]$\text{Cu}^{-1} / \text{Cu}^{2+}$[/tex])
\end{tabular} & \begin{tabular}{l}
Copper MCL [tex]$= 1.4 \, ppm$[/tex] \\
([tex]$1.4 \, mg/L$[/tex])
\end{tabular} & & \\
\hline
\begin{tabular}{l}
Free Chlorine \\
and Total \\
Chlorine
\end{tabular} & \begin{tabular}{l}
Free Chlorine [tex]$MCL = 0.5 \, ppm$[/tex] \\
([tex]$0.5 \, mg/L$[/tex]) \\
Total Chlorine [tex]$MCL = 4 \, ppm$[/tex] \\
([tex]$4 \, mg/L$[/tex])
\end{tabular} & & \\
\hline
\end{tabular}



Answer :

GinnyAnswer
Sure! Let's analyze the tap water measurements and compare them with the acceptable levels for each parameter.

1. pH and Total Alkalinity:

- Acceptable pH range: between 6.5 and 8.5
- Tap water pH: 7.2

Since 7.2 is within the acceptable range of 6.5 to 8.5, the pH level of tap water is within limits.

- Total Alkalinity: Values near 150 mg/L are considered ideal.
- Tap water alkalinity: 160 mg/L

The alkalinity of 160 mg/L is close to the ideal value of 150 mg/L, indicating it's in a desirable range even though there isn't a specific health standard for alkalinity.

2. Total Hardness:

- Maximum acceptable level: 500 mg/L
- Tap water hardness: 350 mg/L

Since 350 mg/L is below the maximum acceptable level of 500 mg/L, the total hardness of tap water is within limits.

Given the provided conditions:
- pH: Acceptable range is 6.5 to 8.5, and the tap water has a pH of 7.2.
- Total Hardness: Should be below 500 mg/L, and the tap water has 350 mg/L.

Therefore, for the given measurements:

- The pH of the tap water is within acceptable limits.
- The total hardness of the tap water is also within acceptable limits.

Hence, we can conclude:
```
{'pH_tap_water_within_limits': True, 'total_hardness_within_limits': True}
```

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