Tamid2: 2
הֵחֵלּוּ מַעֲלִין בָּאֵפֶר עַל גַּבֵּי הַתַּפּוּחַ. וְתַפּוּחַ הָיָה בְאֶמְצַע הַמִּזְבֵּחַ; פְּעָמִים עָלָיו כִּשְׁלֹשׁ מֵאוֹת כּוֹר. וּבָרְגָלִים לֹא הָיוּ מְדַשְּׁנִין אוֹתוֹ, מִפְּנֵי שֶׁהוּא נוֹי לַמִּזְבֵּחַ. מִיָּמָיו לֹא נִתְעַצֵּל הַכֹּהֵן מִלְּהוֹצִיא אֶת הַדֶּשֶׁן.
They began piling up the ashes on top of the mound. A mound was in the center of the Altar; at times there were something like three hundred kor [of ashes] on it. And on the festivals they would not remove the ashes [from the Altar] because it was an adornment for the Altar. And in its days the Kohen was never lax in taking out the ashes.