**TF Collection Procedure - Plastic**

1.  Get equipment out of pack: 1 plastic bottle (hereafter 'new
    bottle'), poly wool, beaker, field sheets, labels, forceps, sharpie.

2.  Unscrew overflow bottle if it has water in it. Pour water into
    plastic beaker & record total volume of water that was in overflow.
    Replace overflow bottle (no rinsing necessary)

3.  Unscrew sample bottle that's in the collector (hereafter 'old
    bottle') from lid & leave it in the soda bottle holder.

4.  Uncap new bottle, place new bottle's cap on old bottle.

5.  Immediately label old bottle -- must have site name (e.g., C1A) &
    Date. If label won't stick, write on the lid or where label-residue
    is stuck.

6.  Remove used wool from funnel & discard. Remove any rough debris
    (twigs) from funnel -- only things that won't fit down the tube.

7.  Rinse funnel with the new bottle's DI and pour all the new DI in to
    rinse interior of whole apparatus (funnel, tubing). Lift end of tube
    up & down to get lid & make sure it flows all the way through.

> \*\* **For Equipment Blanks (1 per watershed per collection)** \*\*
>
> After rinsing with the new bottle (350 mL) of water, pour the full
> bottle's water (there will be 1 packed per trip, labeled 'DIW for
> Blank') through the apparatus & into the new bottle. Use the 'DIW for
> Blank' bottle as the new bottle in the collector. Label the full blank
> 'EQBLK-Site' (e.g. -- EQBLK-C1A), Date.

8.  Screw on new bottle and replace poly wool with fresh wool -- just a
    tiny bit -- we are just keeping needles & bugs from going down the
    tube! Use forceps to push down into funnel neck (just a bit -- to
    keep it from blowing out -- don't shove all the way into funnel
    neck!)

**Notes:**

-   Keep good field notes, as always. Be sure to write down if wool was
    missing when you got to the site.

-   Label samples immediately -- there are no identifying marks on
    bottles.

-   If tubing starts to look gooey, clean gently (cleaning procedure on
    other pages). Note cleaning date on field sheet.

-   Inspect apparatus before re-setting -- rodents sometimes chew
    tubing. You have spare tubing to replace it with if this happens;
    just make a note in the book.

**TF Collection Procedure - Mercury**

1.  Get equipment out of pack: 1 glass bottle (hereafter 'new bottle'),
    2 gloves, glass wool, sharpie.

2.  Put on gloves.

3.  Open Ziplocs on new bottle so you can get to it easily.

4.  Unscrew sample bottle that's in the collector (hereafter 'old
    bottle') from lid & leave it in the soda bottle holder.

5.  Uncap new bottle, place new bottle's cap on old bottle.

6.  Remove new bottle from plastic bags & set aside (carefully, for a
    moment). Put old bottle in the bags, immediately label it by writing
    site name (e.g., C1A) directly on the outer bag at least twice.

7.  Remove used wool from funnel & discard (careful, this is glass
    fibers!) Remove any rough debris (twigs) from funnel with gloved
    finger -- only things that won't fit down the tube.

8.  Rinse funnel with the new bottle's DI and pour all the new DI in to
    rinse interior of whole apparatus (funnel, tubing). Lift end of tube
    up & down to get lid & make sure it flows all the way through.

> **\*\* For Equipment Blanks (1 per watershed per collection) \*\***
>
> Do not let all the water run all the way through -- lift the lid up to
> stop the flow of the last \~250 mL of water (keep in funnel for a
> moment) -- then have a 250 mL Teflon bottle ready and catch that last
> 250 mL in the Teflon bottle. Label it 'EQBLK-Site' (e.g. --
> EQBLK-C1A), Date.

9.  Screw on new bottle and replace glass wool with fresh wool -- just a
    tiny bit -- we are just keeping needles & bugs from going down the
    tube!

Notes for Hg:

-   Keep as clean as possible. Don't scratch head, hair, etc. Don't
    breathe all over the inside of the apparatus.

-   Careful -- the glass is very slippery with gloves on. The glass wool
    will get in your skin (like fiberglass). Handle with gloves.

-   Keep good field notes, as always.

-   Label samples immediately -- there are no identifying marks on
    bottles.

-   If a bottle breaks, bag it with many bags & hike out with it secured
    far from your body (outer pocket of pack).

-   Do not kink the Teflon tubing -- it does not re-form.

-   If tubing starts to look gooey, clean gently (cleaning procedure on
    other pages). Note cleaning date on field sheet.