Phosphate
1. 0 - 10 - 5
2. 0 - 25 - 0
3. 0 - 25 - 15
4. 0 - 25 - 5

before it rained i gathered my samples. all my results were 0 for phosphate, it had not rained in over a week, impliying there was no fertilizers/pollutents in the water.
after rain phosphate levels were fairly high for different areas. where there was more grass phosphate levels were higher from fertilizers.
a few days after rain the water was getting back to a more neutral level.