On-Site Challenge: Water Harvesting Terms and Concepts

Quiz 3(Use the terms & concepts list in the MESA Day Handbook along with the “Rainwater Harvesting for Drylands” resource book)

Pollutant that comes from many diffuse sources: _________ ______ ________

ANSWER: Non-point source pollution

• Storm-water runoff & snowmelt moving over the ground picks up and carries away natural and human made pollutants. List 5 places where this nonpoint source pollution can end up:

• 1)• 2)• 3) • 4) • 5)

ANSWER

1) lakes2) rivers3) wetlands4) coastal waters5) underground sources of drinking water

Think about it…

• How does water-harvesting help deal with nonpoint source pollution?

The photo below is a tank used to store rainwater, what is it called?

ANSWER: Cistern

The arrow points to a screened opening installed above the elevation of a closed water-harvesting tank’s inlet pipe. What is this feature called?

ANSWER: VentVent pipe on underground cistern

The vent shown in the previous slide is used to prevent a vacuum-caused implosion when:

A) water temperature becomes cold quickly

B) when large quantities of water are quickly drawn from the tank

C) there is too much water in the tank

ANSWER: B

B) when large quantities of water are quickly drawn from the tank

• What is a harmonious assembly of living species such as plants, animals, and people and non-living elements such as rocks or buildings that perform better through their cooperative interrelationships than they would as individuals called?

Answer: Guild

The excess water flowing over the storage capacity of a water

harvesting earthwork or tank is called _______ _______

ANSWER: Overflow Water

A device or length of capped pipe that diverts the dirtiest initial amount of water running off a catchment surface away from a cistern is called a __________ __________ _________

ANSWER: First Flush System• SAMPLE FIRST FLUSH SYSTEM:

•pH is the measure of _______or _______ and ranges from 1-14.

ANSWER: Acidity/ Alkalinity

A ph below 7 is increasingly

A) acidic

B) neutral

C) alkaline

ANSWER: A- AcidicRainwater is low in acidity and excellent for plants!

The impermeable materials in the photos below are examples of what kind of landscaping?

ANSWER: Hardscaping

Water that flows in creeks and rivers or held in ponds and lakes is called __________ _______

Gila River, NM

ANSWER: Surface Water

Heron Lake, NM

Rio Grande River, NM

A check dam is a low leaky barrier placed perpendicular to the flow of water within a drainage. Which letter is NOT a purpose of a check dam?

A) Slow the water’s flow

B) Infiltrate more water into the soil

C) Create hydroelectricity

D) Hold soil and organic matter higher in the watershed

ANSWER: C- NOT for creating hydroelectricity

EXAMPLES OF CHECK DAMS- LOOK AROUND YOUR TOWN FOR THESE FEATURES